How do I see the account that my credit card has been linked to?

[DataExpunged]

So, I wanted to buy something, so I made an account, went to put in my credit card and..Boom, it was already logged in another account.
I doubt that it has been hacked or that kind of stuff, I think I just used a fake gmail or something for some reason.
If anyone could help me understand the account linked to this credit card, I would appreciate it!

[PayPal_AshleyM]

Hi DataExpunged,

Great question! You'll need to contact us by phone so that we can help identify the account and hopefully get this resolved. Thanks!

- Ashley M