CONTINOUS BAD SERVICE BY RSAWEB

I have been receiving the worst service from this company now from the time I joined except for one time when I left a review. This is disgusting service. I am repeatedly getting emails about non payment, when I repeatedly keep sending across emails to which I don't receive acknowledgement when I try change bank accounts, the only response I received is that to this after almost a month was we are having a back log. I made payment to them from my new bank account with reference number as per my statement and to tell me after 17 days almost that it hasn't been received my service will be suspended is disgusting. I changed from my previous provider because of this type of service or lack there of. My line speed was also upgraded to 200mb but I am still running on less than 100mb line speed. I have been testing this for 2 weeks now and what did I pay for then when you RSAWEB is telling me I am going to be on a higher line speed. I have lag on my line and slow speeds on my computer which is connected to my modem via a lan cable so kindly explain all of this. I feel like I am being de*****ed. Paying for service and not receiving it goes against my right as a consumer. So I expect feedback soonest. My REFERNCE is COK003