Bad service,

Good day. I have an account with Telkom, my debit date is on the last day of the month. On the 28 October i paid Telkom using their app with a reference i was given. I then again on the 25th of November made a payment on the app again. I never had an issue or my service being interrupted. Only now on the 3rd of November i get an sms that my debit order is rejected. On the app it says your debit order will reflect on 3 working day. When I checked my statement it says i owe the R202 for a bounced debit order and i asked if its takes 3 working days how am i owing you guys, because the money would have reflected. I called their customer service and a lady Called Eugen Mnchunu(Manager) was not of help instead she said we can talk all day but i must bear in mind that i will still pay them whats due. Its not their fault that i paid my account in advance. Its not like i missed a payment, even if the money reflects at the later stage corrections should be made because i did pay.. She said if i refuse to pay the R202 its gonna pile up every month and am going to pay it like it or not. Their staff are very rude because the first consultant i spoke to hanged up the call when I explained my issue to her.. Can i please be assisted, because i can't pay the R202 i never missed there payment. I have proof of payment as well as a screenshot of their app saying 3 working days. Customer service is the worst when you need help.