Made a wrong transaction

Very bad service I transferred money buy accident to my husband's FNB credit card. It's fnb to fnb. My husband's credit card has been handed over but he pays his installment every month.

The money I transferred wasn't for him and I really need it back. I'm very stressed out about this and no one can help me.

I think this is very unfair towards me. I left messages send emails and call backs. But no one answered.