What logging of data is mandatory for credit card co's?

[RogerS]

Anyone know what data it is mandatory to be logged ? I recently had my Amex card invalidated. Amex cannot or will not give a reason as to why that happened.

Neither can they give me a reason as to why that information was not available to their customer agents on the countless times I rang them up trying to find out why attempts at using the card failed.

I do have a replacement card but the hassle.....

 

[finneyb]

It could have been cloned or otherwise compromised and they won't tell you for commercial and/or security reasons

Just a thought

Brian