Barclays PLC Credit Card Complaint

Barclays PLC Credit card department,

Payoff process Georgia

We paid of our credit card and I paid to much. I contacted to credit card company and requested a refund. The amount is over $900.00. For more than 2 months they have said its in the mail. We never received it. We keep calling they keep saying the same thing. We requested the mail it with a tracking number they refuse.we have asked to talk to higher ups, we give our phone numbers they repeat it then when they do n't call we call them and they say we have not working numbers. They have no record of our working numbers. They have offered no solutions and veto all of our solutions.