Dstv lack of service

I have been Trying to register on the dstv app but for some reason it has my old cell number is linked to my account and the customer service team can't assist me with getting it updated. and therefor ithe otp I require to register on the app is going to a number I had 10 years ago. The staff at the call centre can not help me as the staff are untrained and have no clue. They just keep saying that the number on the system is correct. I am really beyond frustrated as I am paying over R1000. 00 per month for a service I can not fully use and dstv don't seem to care about it. Pathetic and just the final straw for me to switch to streaming.