They are committing ***** against their consumers by debitting ********ly against consumers accounts

Cancelled my Supersonic account and returned their router. I handed it in to their receptionist at at their Roodeport office. On my way out I saw a lady who was fuming in anger as they had apparently wrongfully debited an amount of R7000. Next thing a week later I receive a call from an individual stating they are here to collect my router at my work office, I kindly told the gentleman that I had already returned it and did not know why he was here as I had canceled their collection and had already returned the router. Next thing a month later Supersonic is debating an insane R2 500 from my account, I immediately reversed it through my bank then I called them. On my call with them they claimed I had not returned the router of which I did, the lady went to check and confirmed that my router was indeed returned and is in their stock of returned routers. She promptly told me she will log a credit note on my account as this was an erroneous charge. Next thing they are charging the R2500 again last month only to reverse it, and then the R1250 again this month. Now I have to wait for tomorrow morning to call my bank to reverse again. Till now I have not received an email to confirm the credit note, and being honest I am fed up. Tomorrow I am officially calling my legal representatives and open a case of ***** against them, it seems that is the only language they understand. And TRUST ME I AM NOT THE ONLY ONE DEALING WITH THESE ******** DEBITS. WHY IS THE REGULATORY BODY FOR THE CONSUMER PROTECTION ACT NOT INVESTIGATING THIS COMPANY?