Worst Service Delivery - Home Cloud

We have had an account with Home Cloud Solutions since November 2017. Initially, we did not have any problems with them or with their service. Since November last year, however, we have had constant problems with them, they switch off our wifi for mistakes made by them, and then refuse to switch it back on, or take 3 weeks, for which we have to pay, before re-connecting our services. I have spent about R500 worth in phonecalls on a daily basis to have this account sorted, most often you cannot even get through to their numerous phone numbers listed on their website, technical support is non-existent. Messages are left on a daily basis for them to call back, when you do get through to them, no one is available, you leave messages, but no one bothers to call you back. Numerous emails to 5 different email addresses are sent on a daily basis, to no avail. They de-activate your account without warning, as I say, with billing mistakes made from their side, but then they refuse to re-activate your account. The last incident, in January, was that they added an invoice to our account, for December 2017, for R227 which was only billed in October 2018????, no one answers the phones as I say when calling. Enquiries via email does not get answered, sim cards gets de-activated without notification. When asked why this happened, you are informed that this is an invoice that needs to be paid. My service was again de-activated on January 2019, without warning, I made a payment for the outstanding amount on 31 January 2019, after which I again phoned and emailed on a daily basis, with no results, excuses every day, but payment for the account must be made. My service was only re-activated on the 13th of February after having fight after fight after fight. Everyone passes the buck to the next person and in the meantime my service, which I paid for, is inactive. They also deduct debit orders prior to the arranged debit order date, on which there are no funds available for said service payment. I have laid complaints, I have fought about this, but no one takes responsibility for their mistakes. In November 2018 we were also without internet for 2 weeks, again, they shrug it off and no one takes responsibility for this. I do not know who I can lay a complaint with regarding this poor service delivery.