Telkom is ****ing

I don't even know where to start Telkom really is starting to make me wonder why ain't they closing their business when they start to **** people, i have a 2 years contract phone with them and i am paying them monthly an amount of R 675.00 and they increased it to R683.00 last month i paid them but they are saying they don't see my payment after several calls made one consultant confirmed that the payment was made and the account its up to date. but my simcard is closed and for the next month wich is September they will deduct an amount of R 875.00 what for they are saying they have handed my account to debt collectors, my question is how is that possible when my account is uptodate, now that i am finishing paying this contract in octoober now they start playing tricks and ****s to us... this will not end here i will let this trand to all social media platforms i have been struggling with telkom for moths now. worce part their app is also showing that my account its up to date for that matter.