Paid eft instead of debit order

I paid my telkom account via eft on the 25th and did not wait for the debit order to go through, as I am an essential worker, teaching online. I did this throughout 2020, during the lockdown and Telkom did not complain or charge me extra in doing this. Now in 2021, I resorted to the same eft payment on the 25th and have gotten charged an extra R202.70 for paying the account on the 25th, when according to Telkom I should have paid it on the 15th. Even though I had mentioned that I get paid on the 25th and wanted to pay Telkom...guess what, I have to pay the R202,70 otherwise my account may be blocked.if it is blocked, who knows, I may have to pay a connection fee....even the call centre agent could not answer my questions and kept placing me on hold in order to ask the supervisor/manager....what poor service and rules when all I wanted to do was pay my account.