Edcon bad customer service

Good day

I had an account with Jet which falls under Edcon. I was under debt review and my account was paid unknowingly two payments was made not knowing that the account is already paid up. I contacted Edcon sent emails to no avail. A few emails was sent again only then after more than a month I received a call from them asking me to sent documents copy of my ID bank details proof of address which I did, they even asked me must they pay it in my bank account or my debt consultant, which I said doesn't matter either way as long as they refund my +-R650 . Then nothing happened was all quiet. I sent emails again no response another 2 emails follow until today no response. It's now 7 months nothing no response from them. But if u owe them they call you non stop