Cancel my contract already

What can I say. Telkom is getting worse by the day. They are good as long as you swallow the network issues. Their deals are not bad at all, and honestly speaking, I never struggle with them. The only time I struggle is when I need assistance. Because they are not available to assist over the phone. As you follow the prompts, the IVR then says "we will send you the details to get assistance via self service on sms"(paraphrased). Then the call ends and that sms never comes. I tried this about 5 times.

Then I tried the option to cancel the contract via the App. Guess what, that doesn't work too, "an unexpected error has occurred, please try again later" (everyday for a week) my contract ended long ago Im just trying to get to have it canceled as now its going on as month to month. All I need is to keep my number and covert the number to prepaid. Why do I always need to go to social media if I need assistance from Telkom.