Poor service from Nedbank

I called Nedbank to change the APO debit order date in October, and was not actioned. I 4 times today (after holding on for 7 minutes or so per call) for the same thing, either had a Consultant who didn't know what to do and cut the call, or the others were not efficient enough. The line quality was so bad, and the whole experience was quite frustrating. Very poor service from Nedbank.