Unhappy customer can't help with problem

So yesterday I went in to Capitec Bank to close my account as there were going unauthorized debit orders off my account so the lady closed my account and then I asked them to open me a new account with a new account number the lady said its fine she can do that I give her my id and proof of address then as she is busy trying to open my new account a error occurred on he's computer so she said she's going to call her help desk then the help desk said they going to send it to a different department to find out how to relosve this error and what I should do and they don't know how long it will take for feedback this is unacceptable form this bank because now I'll have to wait long if you guys don't want me to bank with you then I'll stay with Fnb I'm very unhappy I have got a incident number that is ********** 8 please make this problem right so I can open my account as soon as possible or I'll stay with Fnb I'm very unhappy I actually want to stay with Capitec Bank and now this happens very unhappy