I paid, you say I DIDN'T...

I phoned Vodacom 16:35 on 19/10/2017 with regards to my account they say is in arrears. I was told by the call centre agent that she will sms me the email address where I can send my proof of payment. That never happened. The DEBIT ORDER went off 01/10/2017 at 02:03 with the ref 02VODACOM ********** 726 I ********** . The funds were not returned as Vodacom says. Now I'm listed as a slow payer/non payer with the credit bureau and I paid. All I want is my account active and up to date. Is it so hard? I really am starting to dislike Vodacom and cannot wait to close my account with them. Guess I'll get no responce again and will have to write another complaint on facebook and HelloPeter.