Cell C is a complete *******!

Cell C provides the absolute worst service ever! I took out a contract with them for a route and 20gb of data last year march and from the start the router gave issues. I have been fulfilling my half of the agreement and paying every month but I get no service in return. After the first few complaints, I was told to go all the way to the repair store at Tygervalley to update the firmware. That didn't help at all. I then got the router replaced. Now with my new router, I am hoping things will work out. Again issues after a few days. This time, they sent a network guy to my house to check that it isn't a network issue and he confirmed that the network is great, standing right next to the router. They then tell me to try using the sim card in my phone and check if the data works. That is where the biggest ******* comes in. So the sim works in my phone and they replace the router again. At this point, a few months into this contact, I just want to cancel. But they keep promising that they will fix the router, that they will get it working. And I ask them if I will get a refund for all this time where I have been paying for this contract but getting absolutely no service in return. Another router down, and I am at the breaking point. I tell them flat out that I want to cancel and they promise that it will work this time. They even give me a free month (Feb this year) to try it out. So I agree to try it one last time. But of course, still an issue. So I cancel the contract and want my refund. All the people at the store I bought this router from already knew me and my whole story because of how often I was there. Even they agreed it was unacceptable what was happening and the service I was receiving but complained that they couldn't do anything but it was up to Cell C management. And for another few months all I get back is that the refund is processing and they are waiting to hear from head office. They finally come back and tell me they can only refund me 3 months because those were the only months where I used no data! Out of a year of paying them for nothing, they only want to refund me for three months because they told me to use my phone for data usage! I asked to get a break down of how they got to 3 months because I don't even understand that number when I look at the data usage on my side when I go through my usage. Now the real insanity comes in. They are only refunding me for the router because I "accepted" to use my phone instead of the router. I was using an old phone that only had 3G when I bought an LTE-A router. My contract did not say I am buying data! My contract is for an LTE-A router that comes with data! I asked when I accepted this as an agreement because they say I was never "forced" to do anything. They want to know why I didn't want to cancel from the start. The fact is, I wanted to cancel from the start but I was constantly reassured that they would sort it out for me or I will get a refund. They actually promised to give me a refund regardless to compensate the year I have struggled with this pathetic service. They are basically telling me that I shouldn't have trusted Cell C. I should not have held the hope that they would fix any of my problems like they promised. I should have just cancelled from the start. Next time, I won't need to cancel from the start because I will NEVER use Cell C ever again. I would never recommend Cell C to anyone because they are completely useless and are honestly only out to serve themselves.