Phones just keep ringing!!!

Hi, I am a very big fan of Telkom mobile and have also converted 8 other users to also be Telkom Mobile users. But after this week I am not sure if I would do that again as I have been trying to phone through to 10213 to upgrade my contract and to pay Telkom Mobile even more money. I have also left countless call me backs on the website as I would like to find out more information before I just upgrade. This has been since Monday 28 September 2015 and still no luck. I know that you can go and upgrade in store but due to my working hours and nature of Job this is nearly impossible. The message on the phone keeps on saying \Get this amazing deal"but how do you get the deal if you can never get through to an operator? I have also tried the chat option on the website with no luck"