Bad service. No accountability.

I app**** for their router/fibre which was delivered and was not working. I was given 24hrs to call/send WhatsApp messages if the router was not working so they could not bill me if there are any issues . I called on the very same day that I received the router to say I have followed all steps and it is not working (still within their 24 hour window period) 5 days after countless back and forth calls , Facebook messages and WhatsApp messages their router was still not working. I asked for them to come and get their router and cancel it (there’s an amount I paid for this) to this day they have not come yet they keek sending threatening emails of a device /service I never used. Later on in the year (Oct/Nov) I got a call from one of their consultants telling me that the problem was on their side and that THEIR router was faulty they offered me a discount of which I refused as I had already received really bad service from them. Their call centre takes close to 30/45 mins to answer a call which you will never get helped or a solution . They do not respond to emails. Their service is really bad and so is their network (this is in the Midrand area by the way)