Fnb, terrible service

I have emailed customer service, ***, ***, went in to the branch and called customer service with no solution to my issue, I have spoken to a Mr Seipati Mmbengeni and still I am waiting for a solution or someone to get back to me. It's been almost 2 weeks, I am highly annoyed and disappointed in the service from fnb. I have a covid cash plan that pays my monthly credit agreements until the end of november, but the 24th of sep, 01 of Oct and 2nd of Oct, it came off my Cheque acc, which it shouldn't. Amounting to R1800. That is R1800 of my money that was taken when it shouldn't have. Mr Mbengeni told me R521 will be reversed, but what about the rest? After numerous attempts to get in touch I am still waiting, this level of service is completely appalling. I use to think fnb was a good bank and service provider but after my experience I am highly disappointed and will definitely not recommend fnb to anyone.