How can the hill find out who used my credit card? I am p.o.a. for elderly friend. there is a charge to

I am p.o.a. for elderly friend. there is a charge to a store supposedly sent to my home. i did not engineer the order or charge. how can i prove it? Other charges are to varied stores- is there a path to track down who used the card through them?

Answers:
The great thing something like this is you don't have to find it out...you step to your bank or credit card issure and folder a dispute. The person who charged your card must prove you charged the item or they are required to return the money to your account. It isn't indispensable to know who did the charging unless you wish to press charges.