Loan SETTLED in FULL but they still Deduct money

I am so irritated with you guys and SO HAPPY that I decided to settle this Loan and and not having to deal with you guys anymore. We paid this Loan and Settled it on Monday 23 March 2015. Then you go today, 27 March 2015 and you DEDUCT ANOTHER INSTALLMENT FROM MY ACCOUNT!!!????????? This is called *****ing and if you do not put this R1300 back into my account TODAY 27 March, I WILL LOG THIS WITH THE Ombudsman as you are taking money towards a Loan that does not exist anymore!!! YOU ***** people's money. Secondly, your call centre opens at 8:00 according to all websites and your IVR on your telephones. I have been trying since 8:00 up to 8:08 to get throuhg today and it told me that The Call Centre is currently Closed the whole time. So over and above *****ing, you also do not adhere to opening times. Then I speak to this Sinazo Nomzamo who clearly has listening issues, and tell her about this issue that you not adherring to the opening times, then she asks me what is your ID number so that I can check where you faxed it to????? WHAT DID I SAY ABOUT A FAX IN ANY SENTENCE??? You guys are pathetic and I want my MONEY TODAY! You better make sure you put it back TODAY!!