Disgusting service from mweb

I took out a contract with you guys almost 4 or 5 months ago and from the time I got my LTE contract, I have had endless problems. I am unable to watch Netflix without it continuously freezing. The router was supposed to allow up to 22 devices to connect yet if more than 1 device is connected, it doesn't work... Network becomes extremely poor and you cannot use the internet. Downloads take forever and it is an absolute nightmare. I logged a ticket and it's been open for over 90 days. I get interim feedback every 2 weeks or so but no resolution. Last week I was advised that a new Sim card will be delivered and now my current Sim card is not working at all. The 3g/4g light is constantly red. I tested it in my phone it still doesn't work. I reset the device and it still doesn't work. I called the service desk 3 times today and the last guy said Il just have to wait for the new simcard. My question is.... How the hell am I expected to pay for a service that I cannot make use of? He said that you guys will reimburse me for these days that the red light is on but what about the last 4 months??? This is the most pathetic service ever and I expect it to be sorted out ASAP or you refund me for the last 4 months and cancel this useless service. I expect a response as ASAP... Do not make me wait another 2 weeks.