Telkom *******ly using debit orders / poor service

Beyond the initial issues with telkom not getting back to me / bad service, I have the following major issue that you should take note of before you take out a contract. I cancelled my contract using the correct cancellation form after the 24 months contract (27th December). They have a 50 day notice period (irritating but i dealth with it). I had to resend the e-mail about 5 times before anyone bothered to respond. Then they billed me in March, so i reversed the debit order. They try and fine me for a debit order rejection, and took R1,520 from my account today. Completely ******* use of a debit order. Really Really Sad. Never use Telkom unless you have time on your hands for this kind of stuff. Ref number ********** 992