Foschini is steeling my money!!

On the 18th of April I returned an item I bought on my debit card. The shop wanted to return the funds back to my cheque account instead of giving me cash (they said they are not allowed to give cash). A week later the funds did not reflect yet and I went back to the shop. they told me that I should phone customer service, they are unable to assist me. I phoned 26 April, 5 May, 17 May and 26 April. Each time telling me they are going to escalate my query. Then a few days after I receive an sms saying that "my query has been resolved", but nothing happened. I emailed through numerous times my documents, as requested as well, but still nothing has been resolved and no-one has even phoned me to try and resolve this issue. This is now becoming a case where Foschini/TFG is steeling my money for not trying to get my refund!!