Capitec Bank stole my R250. They don't want to pay me back.

I did a cash send, whereby I was going to withdraw that money. I went to a Capitec ATM next to a Capitec branch. When I put all the necessary details on the screen it displayed "processing" then after a while it said "transaction failed " ,I then quickly proceeded to check my balance and it showed that the voucher has been redeemed, but there is no money that I got. I called twice and at both times the call centre agents said that they have escalated the issue and said that the issue will be sorted within 14 days. It has not happened. Employees could not help and were referring me to another branch. I am extremely unhappy and I want my R250. It is long now and I am not getting any joy or the wanted help in getting my R250 back.😡😠😡😤