> I believe they also offer a "stop allowing charges by this merchant" feature
If they have this it's another reason to use them for automatic billing. I have tried to do this with a VISA card and they said they cannot do it; the only way to prevent future charges would be to close that account entirely and even then I might still get billed for some period of time.
If they have this it's another reason to use them for automatic billing. I have tried to do this with a VISA card and they said they cannot do it; the only way to prevent future charges would be to close that account entirely and even then I might still get billed for some period of time.