Amex Prepaid Card Complaint

Amex Prepaid card department,

ID prepaid card Managing, opening, or closing account Virginia

This company stole $400.00 from me. My account was closed with a $400.00 balance. They gave a refund check for this amount. I accidentally tried to submit it into the wrong bank account ( brothers ). It was rejected. I then submitted to my bank account, with my name. It got rejected. When I called, they told me I needed to get it reissued because of the - incorrect deposit. I have contacted Serve to ask them to reissue it. However, they refused to reissue it, saying the check was cashed. This is false, i have the check and it was never cashed. I made - attempted deposits that both did not clear. Now they have my money and refuse to reissue a new check, like my bank told me to get done. Each time I call they continue to do nothing. It has been a month and I do not have my money back.