Mobicred are the most *********** business

Where do I start. I wrote a review about the terrible service I received when I paid my account in full. That was a story in itself. Now they have taken the full debit order off my bank and I owe them nothing. I phoned and was told after paying I had a R10 balance. I had emailed them to find out the amount for my final account and paid the amount they sent me the same day. I put an extra zero on my reference. I sent them an email every second day after that with no reply. I got an account saying it was not paid on the 16 so I sent another email to tell them this was paid on the 3rd on May. I was treated so rudely you would swear it was me that was *********** I then looked online to find they credited me but I still owed them R66 odd. I sent another email and a rude individual let me know they will not credit me. I put in a review and have heard nothing since until the money for the full debit order was taken off my bank. I phoned and was told that was because I had a R10 balance when paying my final amount that they gave me to pay. I want my full amount put back into my bank and an apology for the incompetence of the staff at Mobicred