Cancellation Nightmare

Trying to cancel a Vodacom number is near impossible! Absolute nightmare... I have a data bundle I no longer use so wanted to cancel. Called the appropriate cancellation number. You are then told for 40 minutes why you should not cancel the number and that you "Don't understand what you are doing" when they try and cross sell you another bundle. The call centre agents obviously have a list of cross sell tactics to get through, but their process is abusive. I tried cancelling 3 times... the first time went through the entire process, then told to hold for a reference number. On hold for 20 minutes, then got cut off. Second time went through the process again, this time the system was apparently down and was promised an immediate call back which I never got. Third time was today, and as much as I tried to say I just want to cancel, I was cross sold to for 40 minutes, before I finally managed to get a reference number! Vodacom, stop annoying your customers!