Telkom is unfair to customers

Worst network on earth, in terms of contracts when they say your contract is ending in 2 months and you tell them to cancel it, after the 2 months they still Debit you. I don't understand what's the issue with you guys, my contract ended in May and up to this date as we speak I'm still getting billed, truly you guys are the worst and I will never take any contracts or even use your guys network again