Unfair Deductions

I am very upset with Telkom where they sent me an Sms informing me that they did not received March payment and secondly they sent another Sms informing me about the double deduction, however it's surprising cause they did got the money and below was the notification I got from my bank Nedbank: Debit order of R169,00 paid from a/c **4994. ***.... 01 Apr 20 at 02:01. I phoned and i spoken to the lady where I asked for the email address to send the statement as a proof of they did got money and if they didn't get R 169 it was not supposed to reflect on the statement she gave me this email *** and when I say to her I have to hang up the phone in order for me to send her the statement she then told me that she won't be able to assist me if I hang up the phone why I don't know, that was accepted, after I spoken to her I saw the amount of R338. 00 went out of my account without aggreing with her and when I remember our agreed date is the 31st of each month and not the 15th 2nd Sms I got Dear Telkom Mobile Customer. Your total balance for account number *** is R338.0. R169 is current and R169.0 is in arrears and payable immediately, so in other words I am paying March twice? It can't be so please I'm asking the urgent or whoever took the R169 on the 1 of April 2020 and never banked it on Telkom account to reverse it back emmidialety to my account since you got all your money R338 I was outstanding with as per your sms also please send me the email address where I can forward you the statement as a proof of debit. PLEASE ASK THE MANAGER TO CONTACT ME AS MATTER OF URGENT, Wanna aks if this is how you welcome the new customers in your field.

Thank you Thembisa