Telkom USELESS!!!!!!

I have been on hold for 30 minutes with Telkom and this is not the first call I have made. There have been many prior to this to sort out my issue with the Telkom mobile number. When you dial the number it tells me that the number does not exist. How can the number not exist when Telkom are debiting my account every month on the last day of the month. This number was ported more than 10 months ago. Sort this issue out immediately. Case number: ********** 39. I also received another reference: Zandile Mbali Khoza!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! What poor poor poor service from Telkom.