Impossible to cancel. Constant Billed.

Frustrating! I stopped using rain and because I did not click on the option to cancel, I was handed over to third party attorneys. I was advised to settle the amount over 4 months. On the month of my last settlement, Rain suddenly says I need only to pay R250 to have my sim activated. I go on the myrain app , I’m told to pay R530. From there , I cancel my service and I’m advised that cancellation would be effective from 29/02. The balance fluctuates on myrain app until it is written that I owe -R81. TODAY, I am contacted by rain to pay R677.52. THIS AMOUNT DOES NOT APPEAR ON THE MYRAIN APP. WHY am i constantly expected to pay in bits and pieces?? I did not receive an email as confirmation of cancellation, the money was taken yet I must pay you guys more? What am I paying for now? Non of the amounts I’m paying reflect on my statements. This is seriously annoying. You cannot constantly prey on people like this. *******