Hello Maddy123,
I understand you're upset. However, in most instances of that nature, you need to contact your bank and/or your credit card company and have them reverse the charges and pay the correct account.
Any company would need to verify that it was yourself who paid the other account and not somebody else. Unfortunately, the payees would not be able to verify that information. They may be able verify that funds were deposited into the other account. However, they won't be able to verify from whom it was deposited.
Your bank and/or credit card company would have to rectify the situation for you.
Hope this helps 
Cheers
