Unfair charges

January I was called Telkom's agent to renew my contract as it was expiring, I informed the agent that I prefer paying online not by debit order because I am no longer using an absa account. However he activated the debit order and I got penalized R212 for the unpaid plus R150 bank charges on the absa account. February I went to the branch to change my account and debit date to the 15th, again the consultant didn't change the debit date left it to the 20th I then did a payment online on the 16th March when I realized that they didn't debit little did I know that they will debit on the 20th still which I reversed. And again got penalized R212 for their mistake. On the 11th I called them and the consultant said she's going to waved the penalty which it didn't happen. They debited R640.56 instead of R459.00. If this is how they treat their customers I might as well cancel my contract and go elsewhere.