Discovery bank is a nightmare

I had app**** for a discovery card in 2018, I never received the card from Discovery while it was still with FNB. Around March this year, I received a notification that that card is no longer synced to my FNB app. Two weeks later my account was debited R500, in May again my account was debited R500 by Discovery bank. This money could not be reversed, I had to call Discovery bank to have it returned. I called them, they said they would log a call to call me back, well the first 2 times I missed their call due to network challenges. I called in again and they finally called and I told them that I would like to "close" that account as it had been 2 years without any action from the bank and now a debit just like that. They tried to sell me an idea to keep the accout open, I told them that I already have another savings account with another bank. Then they said an email would be sent that I need to reply via email that indeed I am closing the bank so that they can refund my R 1000. The email was supposed to have been sent I 48 hours since that call... it has been a week since that call and no email has been sent. I hate the fact that I did not give them the authority to debit my account and that I have to convince them that I need the account closed. I want my money and I hate the inconvenience this has brought my way.