Terrible service from SARS

If I could I would not give it a one star at all.

Ridiculous service, my tax return has not been paid. They claim the bank details were changed. So the system blocked the assessment. Yet the same bank details were used in May and no issues. After numerous phone calls and emails. I was told to send my documents via a link they provided on the 21st August. I was told it was at the verification department. It's now day 18, yet still no feedback. What is the issue