Telkoms terrible service

I have had the worst if not the most Terrible experience in my life from Telkom. Firstly i needed to cancell three number due to the person passing away. I phoned the call centre only to be told I need to go into a store .when I went to a store ,the store advised me that I can capture the cancellation online .1st the call centre is not helpful and I wasted my time .anyway I did the cancellation online and was assisted pretty soon for the cancellation of the mobile number which was due for an upgrade . however the WiFi which I have been promised my many people at Telkom will be cancelled isn't cancelled all the paper work has been submitted and it's been more than 30days and Telkom promised to cancel within 21days one consultant actually had such attitude and told me he won't assist with a follow up I requested to speak to the manager but she is always busy and I have not heard from her but was promised she would call me. Telkom advised that the contract still has 12months to go and in the mean time they are still debiting the person whom passed away. They are basically in my opinion Robbing us and trying to prolong the process to make money off our situation.im so tired of their pathetic service that I advised many people not to even bother going to them for WiFi deals and personally I am not even going to upgrade .I received a case no ********** 2 which is sitting with the cancellation department collecting online dust most probably. Why does Telkom say 21days and under deliver ?