Ok furniture disappointment

My husband had an account at Ok furniture. The account was paid up full by our bank. Then we also went to pay the account in full, not realizing that our bank already paid it. We went to see them about the refund of our money. R1575 and some cents. My husband provided all the necessary paperwork needed but we've been getting the runaround from them for 2 weeks. I understand that I'm not the account holder, therefore they won't divulge any information to me. But he has been there personally several times, and every time it's a different story. Now he asks me to find out when he can get his money back but they can't even tell me that. All they say is that it's being processed. This morning I was told that the paperwork was only sent to the head office today . Yet he was told it was processed already and that he'd have his money by today for the latest. Needless to say he is very upset and annoyed at being given the runaround. We definitely won't be doing business with them in the future.