BAD, BAD SERVICE

I have been with Supersonic since their takeover of Nepic. My account was paid every month via debit order with no fail. A few months back I received am email from them that my account is in arears and that I need to pay the outstanding balance. I then started to try and get in contact with the accounts department at Supersonic with no success. This is now more than two months later and they still do not answer their phones or call back on the automated WhatsApp requests left. Just get a reply that they are extremely busy and will call back. There is no response from Supersonic and I have been without an internet connection for more than a month now. Still they are not coming back to me. I am in the dark and do not know the reason they cancelled or stop debiting my account. This is really bad service. There are no after care and it seems they don't care the impact this has on not having an internet connection being unable to do any kind of work effectively. This makes me so angry. This statement below is false advertising and really sad to not experience this: "supersonic is brightened by MTN. This means you get all the security and backing of South Africa’s most loved brand." All I want is for Supersonic to act on their promise and contact me so I can get answers and resolve my issue with them. I am a very disappointed customer who is been kept in the dark. My only other alternative is probably taking this up with the ISPA and CCSA.