Payment rejection fee charged incorrectly

I currently have a contract with telkom and guess what I am blame no one but myself. I have been charged penalties for payment rejection on my debit order. It's very frustrating that their staff is not trained, everytime you inquire with them, they always give inaccurate answers.

I have been making payments for my contracts from the information I have gotten from staff but to my surprise I have been always been charged.

The billing staff don't communicate anything with customers if they are any changes on debit order dates.

Last month, I paid via 3dlink method of payment and the payment reflected same day and it was loaded on the system but telkom still charged me penalty fee for payment rejection.

I am at the stage whereby I just need to cancel my contract and go somewhere else.