Can never get through to call centre!!!!!

6 calls and almost 2 hours of hold time and can't get to speak to someone to change my address. This is seriously becoming a joke. Trying to get any form of service from Telkom is literally the most difficult thing to do. I have a reference number for the move of premises but the new address is incorrect. Somehow you geniuses managed to book my current address as the new address. Please contact me ASAP.