Horrid Service! Incompitent! Entitled!

I cancelled my Supersonic wifi in June 2020, this morning I receive a letter from their attorneys, VVM, claiming I owe them over R2000 for services they rendered but I didn't pay for. I have had so many issues with Supersonic since the day I signed up wiht them, payments not being allocated, debit orders going off for payments already made, not to mention the ********** customer service, this morning, I have to wait almost 3 hours for someone to get back to me on WhatsApp and I spent 26 minute and 20 seconds holding on the phone to speak to a human being using my voice and had no answer, I am now again on the phone and hanging on as if this is all I have to do in life. Ensure that Supersonic staff do their job.