Charged a penalty even though an account was paid

Hello Peter,<br> <br> I regret taking a contract phone with Vodacom. I paid via EFT every month 3 days before the account is due (last day of the month) because i have challenges with funds in my bank account and I notify the call centre immediately once EFT is done. If i notify them they give me a run arround and tell me to drop and call another number etc.<br> <br> I called the accounts department when i saw that they charged me a penalty of non payment of about R100.00 and the agent I spoke to refused to listen to me and gave me an attitude and told me I will have to pay the penalty there is nothing I can do. I felt insulted by his attitude. Now and then I get calls from their system (auto dialing my number) about my overdue account (penalty i am disputing). It is irritating as I get more than 3 calls a day and I have no peace of mind at all. I am recovering from the operation I did at hospital and I have a new born baby and now Vodacom and their irritating calls,unfortunately I cannot even tell the system I paid my account on time and I do not owe Vodacom.<br> <br> I sent an email 29.05 with the proof of payment for 3 months (as they told me the penalty applies in that period) but i got no response