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First # | Type | Length | Phone | Website |
---|---|---|---|---|
3 | travel/entertainment cards JCB | 15 or 16 | ||
37 34 | American Express | 15 | ||
300-305 36 38 | Diners Club | 16 | ||
4 | Visa | 13 or 16 | 800.VISA 911 | Verified By Visa |
5 | MasterCard | 16 | 800.MC ASSIST | MasterCard SecureCode |
6011 | Discover Card | 16 | ||
8 | Voyager | 15 |
If you get a call or email from anyone claiming to be from these organizations,
tell them you'll call them back through these numbers above.
To add an extra validation step upon checkout on websites of participating merchants,
go to credit card processors' webpages to set a password.
As with any site that should be private, click on the lock icon (at the bottom of your browser)
to verify who is associated with the certificate used for the "https" in the URL address.
ANSI Standard X4.13-1983 specifies credit card numbering, such as the first digit(s) signifying the system:
Digit 16 is a check digit.
These can pass the Luhn formula (MOD 10) CRC. [ code implementations]
To limit liability, credit card values should not be stored in the database. But if you must, store them in encrypted form.
Display credit card values only on the page which edits the value. otherwise, hide all but the last 4 digits of the card number.
Be aware that credit card companies who offer "low interest rates" take your money several ways:
Call the number on each of your credit cards and ask them NOT to send you
checks in the mail. I've had someone find one I threw away and cashed it.
It took 6 months and many phone calls to recover that money.
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Dollars Spent | Points | Cash Back | Dollars back per point |
---|---|---|---|
$2,000 | - | $20.00 | .01 |
- | 2,000 | $20.00 | .01 |
- | 25,000 | $250.00 | .01 |
- | 25,000 | $50.00 | .002 |
- | 35,000 | $100.00 | .00286 |
- | 59,000 | $200.00 | .00339 |
$40,000 | - | $400.00 | .01 |
My suggestion: use a single common measure: Dollars back per dollar spent.
If you're promised 1% back per dollar spent, then if you should get back (by definition) .01 (1%) of a dollar. To do the math on a calculator, type in 2000 for your spending, type * to multiply by .01 = $20 back. This I put on the table.
On the other hand, if you're promised 1 point per dollar spent, then if you spent $2,000 you should get 2,000 points. To be equivalent to a 1% cash back deal, that 2,000 points should be able to buy $20 of something, calculated by 2,000 points * .01 dollars back per point = $20.
So is getting a
$50 card for 25,000 Marriott points better than 1% cash back? Well, multiplying 25,000 by .01 = $250. Yikes.
In other words, if you had a 1% cash back card, you could instead have five of those $50 gift cards.
So unless you got those points on a "5x points" offer or getting 5 points for every dollar spent,
you're still not getting as much as a 1% cash back offer.
However, since Marriott rewards 10 points per dollar spent (but 5 at Residence Inn and TownPlace properties), they're giving the equivalent of 1%. Those at high Elite levels get better than 1%.
Quiz: If you're given 35,000 points to sign-up, what are you really getting enticed with?
Companies usually offer better conversion rates on larger redemptions.
Divide that $50 by 25,000 = .002 dollars per point.
However, a $100 gift card for 35,000 points is redeemed at
$50 / 35,000 = .00286, which is a little better deal than the $25 card.
The $200 card is redeemed at .00339, which is even better, but still not as good as 1% cash back.
Strategy 2: Beware of foreign transaction fees and current conversion rates
Most credit cards issued in the US charges a 3% or more foreign transaction fee, even while in Canada.
Some Capital One cards and cards from some credit unions do not charge a fee.
The one time I checked, the United Explorer card had a more favorable foreign currency conversion rate than American Express Charging 8141 Kronas in Sweden resulted in a $1291.03 charge on my Amex bill. That's a 0.158583712 rate. Based on rates from other transactions the same day (0.154705882), charging the same amount using my Chase United Explorer would have resulted in a charge of $1259.46. That's a $31.57 savings!
I'll be doing a 3-way contest when I'm in Barcelona December.
When in Europe, paying for a taxi, a standard credit card from the US with a magnetic stripe would require extra time for the driver to print out the receipt for signing unless my VISA card has a smart chip (EMV technology, named for developers Europay, MasterCard and Visa). that has a PIN code. Only PIN cards are accepted on trollies, toll roads, Paris Metro ticket dispensers, unattended gas stations, etc.
No Chase cards have PINs even though they issue EMV cards as the British Airways Visa 800-577-0633 and the Marriott Rewards Premier card. However, they do not charge a foreign transaction fee. But they didn't enable the PIN feature even though it's a EMV card. So it doesn't really solve my problem overseas.
EMV cards that actually have a PIN (and no foreign transaction fee) is the Andrews Federal Credit Union GlobeTrek Visa Rewards, after, since I'm not military, joining the America Consumer Council. But it takes patience to apply, as this guy experienced.
Card Processor | Hotel | Airline |
---|---|---|
Chase | Marriott | Southwest |
BofA | Choice | - |
Citibank | - | American |
Amex | Hyatt | - |
? |
Intercontinental Holiday Inn Priority Club | - |
? | Starwood Westin | - |
Is it better to cash out or use 4,900 points for 4 Regal Cinema tickets?
If you cashed out at 1 penny per point, 4900 points = $49. Divide by 4 = $12.25 per ticket.
So it's not so good, especially if you're using them to get into a discounted matinee that costs $6 per seat cash.
Strategy 4: Watch out for earning limits. The Costco American Express card gives 3% back for gasoline, but only up to $3,000. At $2.80 per gallon and 25 MPG, you're back to 1% after 26,785 miles of driving. When that is reached, I switch to my Discover card, which offers premium discount on gas some months.
For example, I was once suckered into Citibank's promise of "5% back", but after I spent over $35,000 on their card, I found out that the offer only applies until just $100 is earned, then I got NOTHING back for my purchases. I had asked for a written offer, but never got it and I was too lazy to follow-up.
Strategy 5: Redeem points quickly. Banks often change how much your points are worth (without telling you). For example, I no longer use my MBNA/Bank of America World Points card because when I signed up 2 years ago, the points were worth $50 for 5,000 points (redeemed 20,000 at a time). But today they are worth half that. I don't both with Hilton because they throw away all your points and even cancel your membership number if you don't stay with them at least once a year. Marriott doesn't do that.
Strategy 6: Watch out for redemption caps One way for cards to delay your redemption is by limiting how much you can redeem at once. If an airline ticket purchased with MBNA points is less than $400 (which is about half of domestic flights), you waste points. But if it's more, you have to pay extra money.
Strategy 7: Watch out for redemption fees World Points charges a $55 redemption fee per flight. That's like giving back 30,000 points. US Air charges $300 to redeem miles, which on short flights makes mile redemption actually more expensive than if you had just bought the ticket outright for say $280.
Fees for shipping and "handling&qout; charges when redeeming merchandise. Call and find out about these charges before clicking "Buy This" using points.
Strategy 8: No Flexibility Allowed (For You, not them) With World Points, the 25,000 points per domestic flight only applies under a very specific set of conditions: Saturday night stay, stopping in one city, no choice of airline or when you fly, an international stay lasting more than 7 days but less than 30 days, etc. No changes are allowed. You lose all the points if you don't take the flight as booked 21 days in advance (the earliest you can book).
However, if the flight is delayed to a less popular time, you still have to pay the extra miles.
Strategy 9: Watch out for black-Out Periods United charges more miles during popular times, such as 50,000 miles for a short flight on a Friday night. United once charged me 40,000 for a one-way 400 mile flight when otherwise 30,000 could have gotten me to Hawaii and back. Boy I hate United Airlines for that.
Strategy 10: Take advantage of cross-industry/partner offers.
Program Name | Cash Earned | Cost of More Points | Affiliates | US/Intl Air | Car, Other | Hotel |
---|---|---|---|---|---|---|
MBNA | (Previously) $50 for 5,000 points (redeemed 20,000 at a time) | $1 per point | Best Buy, Dell, JCPenney, Land's End | 25,000/35,000 /flight +$30 each way = $170/400 | 2,500 per day = $25 | 5,000 per night = $50 |
American Express Blue | $25 for 5000 points | - | Sony, OfficeMax | - | Thrifty | Hilton |
Chase Platinum | 1% ($5) on $5000 charged | - | - | 25,000 on Continental, USAir, Delta, Alamo | - | - |
Southwest Air VISA | $34 for each $5000 (spent first 12 mos.) calc. at $100 flight / $14,400 from $1200 per credit * (16-4 credits on sign-up) | 16 credits (doubled when booked online) | Alamo, Earthlink | La Quinta, Comfort, Rodeway |
I recommend cash-back rather than airline miles / hotel night cards because of the complex and ever-changing "rules and restrictions" they make up:
I don't have Citicards listed here because Citi ripped me off big time. They offered me a "5%" cash rebate over the phone, payable after 6 months of charges. At the end of that time, after $32,000 of charges (which other cards would have rewarded me at 1% with $320) I was informed (after several phone calls) that there was a $100 cap on the rebate amount. I had explicitly asked them about this when I signed up for it, and I was told there was no limit. I asked for an email confirming that. On top of all that, they sent out a paper "notice of account conversion", and switched me to another card automatically "unless you called". These are deceptive practices.
Lessons learned: 1) Dont' trust Citibank for anything. 2) Before acting on an offer made over the phone, get it in writing.
I like the Costco American Express card. Their rebate is sent as a paper check among other offers, which I ignored. But after several months, they took the time to call me to ask why I hadn't cashed it. I then searched through past statements, went to a Costco, and cashed the $1,200 check. Sweet.
$99 gift certificate from Marriott Hotels gets you a weekend room in Residence Inn & Courtyard properties.
How Much Can I Borrow Calculator by Hugh Chou
Mortagage Calculator (Java applet) by Karl Jeacle
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Among Credit Reporting Agencies, there are three major ones.
You have to contact each of these separately to resolve a difficulty with your credit report. A 2003 study for the Federal Trade Commission determined that in the previous year, 3.2 million Americans' personal information had been stolen by thieves who opened new accounts or loans. On average, victims lost $1,180 and spent 60 hours resolving the problem.
Quicken talks about credit reports and what to write your credit dispute. Credit Repair Kit. The Identity Theft Resource Center in San Diego and California Public Interest Research Group has an excellent set of suggestions and guidelines for victims of identity fraud.
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