old evo being used

[wetbar]

Hey I gave away my old evo when I got my new razr. I just got an email that some purchased a 100.00 app from the phone. I emailed the company and got them to take it off, but how do I call google and find out how they got my credit card #? I have looked looked on the net and the number just take you in a big loop.

Thanks for the help