Poor call centre customer support at Telkom

I called 10210 to sort out a problem that I have had for years: being charged for a number I don't have/use and never did. I got through to accounts in a matter of minutes and a friendly lady assisted me and told me I need to get in touch with cancellations before she could log a dispute. But woe betide any assistance from the cancellations department - I was on hold listening to music for over 30 minutes (terrible music at that, interspersed with adverts and requests to be patient). I think it terrible service and it conveys the subtle message that if receiving money is involved then service is quick but were there to be a possible loss then service is poor (at least that's what it felt like). I hope Telkom will come to the party.