Get help from Telkom is a nightmare

I got charged for a unsuccessful debit order in August. They tried debiting my account on the 24th, whereas I get paid on the 25th even if it's on a Saturday. I disputed the fee in August and they promised to reverse it. Till today I have not got it back. I have spent +/- 6 hours on a call with different Telkom agents with no better outcome. When you visit their stores they refer you to call center. But still the call center is unable to assist. NB: I provided my bank statement when opening the account, which reflects my company's pay rule