NEOTEL - Bad Service

I have had the most awful experience from a customer service point of view from Neotel. I was without any service for a week because it took Neotel 8 days to respond and address our problem. Our internet just stopped working. They came and replaced the antenna and the router. Now it is even worse - we have service but it is so slow that I can barely do my work from home and watching Catch Up is a joke. I spoke to a follow up customer care person last week Thursday and explained the problem. He tested the speed and said it was fine. I agreed with him but told him it was intermittent. I then got the lecture about using several devices and how it could slow the speed down. I told him I understand this, but that we had changed nothing and that the speed was much slower than before. He advised me that he would send a technician out to test this problem. It is now 8 days later and I have not heard a single thing from them. I have asked for a credit for the week that I had no service, but obviously - as I expected - I have received an sms message advising me that the full amount due will be collected at the end of the month. I am disgusted !!!