I regret registering with Damelin!!!!

I am registered with Damelin Correspondence student no 429971. This is one decision that I regret taking in my life. I have requested to cancel my enrollment since 19/10/2017 after I have discovered that the Diploma I was registered in was not accredited in my workplace. It took 9 months before my cancellation was approved as I got email on 10/07/2019 that the board had agreed to cancel my registration with 50% fee charged. I agreed to this because I had no other option. I was told to wait for 90 days before I was paid back my money but till today nothing! I am calling their offices, emailing with only promises to be paid but nothing. I have paid almost 20 000 for this Diploma without even studying with you and this is reap off. Can I please get a paid up latter in order to clear my name on Credit as it shows that I'm still owing R661 to you guys and please can I get my refund. I want to register and study with other people I can trust. I can't believe I've wasted my time and my money with you!!!!!