Poor service

I have had the worst experience with this bank for 2 weeks now my issue has not been resolved. 2 weeks ago I went to the shops and tried to pay with my bank card and it declined even though I had a positive balance, I tried withdrawing the money still it declined, I tried the send money option to withdraw at the Boxer till and it still declined. I was then informed by the cashier that the bank was offline which I understood and since it was weekend I waited for Monday to try and fix the issue. I sent emails and called until my money was reversed and paid twice in error from their side. I withdrew my money and a few days later they reversed the extra money which is totally acceptable since it did not belong to me. Following weekend I go shopping again my card declined but this time around the bank was not offline as I could see people transact with their cards. I waited again until Monday the 19th to withdraw again it declined, I sent another email and there were no response, the following day I called and spoke to someone who said the money is withheld because I owe the bank which is not true because it can be seen on my bank App that the money was reversed by the bank. The gentleman said he was escalating this to another department and I will know by 23rd which was Friday still nothing, I called again and during the conversation the call disconnected, my mobile is kept in my locker by the time I got to it someone had tried to call me and I called back begging the person who answered to call me back because I was running out of airtime I waited the whole day no one bothered to call me back. It's Sunday and I missed the call from them which I immediately called back but I was waiting on the line until my airtime ran out, I responded to an email asking someone to call me back still nothing and my money is still reflecting but not allowing me to transfer or withdraw and I'm sick and tired of this running around for my money.