Customers being exploited for the banks issues!!!

I initiated a cash send to someone and when they tried to withdraw it, cash didn’t dispatch out and I had to initiate another one. Both cash send transactions were charged . I then went to dispute the transaction that failed and got the sms that my dispute was successful. However, the charge for the failed transaction was not reversed. I submitted a query via WhatsApp and was helped by Fisiwe who advised me that the charge will not be reversed because I can withdraw cash, which I responded that my request at the branch was to reverse the transaction as I had to re do it and was charged for it. He/she tells me that I must wait 30 days for my money to be reversed!!! This bank is exploiting us for issues caused by them and customers must pay for them or wait long periods to get their money back. This is ridiculous!!!