Failure from Cell C to render quality service regarding debit orders

Repeated attempts by Cell C to run a debit order on inactive Banking accounts. This occurred after numerous calls to Cell C Customer Call Centre from 15 June 2025 to 16 July 2025 informing them that I have closed my old bank account and provided them with details of the new bank account. Their response. They cannot institute debit orders on banking accounts not older than 3 months. To avoid a penalty fee they requested me to do a promise to pay and an eft or easy pay payment 5 days in advance before the Cell C due date which is on my salary pay date which is the same as Cell C's payment due date. Yet on 20 June 2025 they( Kelly) contacted me via the Cell C WhatsApp platform and said that they would try the debit order on the new bank account which I found contradictory to their previous arrangement and Cell C policy. I did not do an eft or Easypay payment and Cell C did not run the debit order on the new bank account on 15 July 2025 and is now going to charge R70 penalty again for the returned debit orders on the old bank account that was never amended on their system. The first penalty happened despite paying on 13 June 2025 , 2 days in advance before the due date as communicated with them on 15 June 2025. The call centre promised that no penalty would be charge even if payment is made in 2 days in advance, however this was not the case in June 2025.