MWEB told me they can resolve my issue

I've been a loyal MWEB client for many years. I had constant issue in the last 6 to 12 months with ADSL disconnection. I happened so much, that I got in a habit of rebooting the router, sometimes every 5-10 minutes. I am a technical person and have done I.T for 21 years. There is not enough text available to express and explain what I've experienced. This broke my trust in MWEB and not sure if it can be restored. I know the rules and guidelines of internet and shaping. I've done some research myself. What happened, I reported that I cannot access my usenet server (which is an extra cost). My usenet access, after MANY YEARS just suddenly stopped. Not throttle, slowed down or stopped sometimes! Dead all the time. I spoke to many technical staff, having a downtime of almost 2 weeks now. Everything was tested, that they wanted to test. MWEB promised me many call back and appointment, but never sticked to it. I had to phone again to remind and ask them to please help me. Sydney from MWEB told me that there is no way they help me. He did not have any solid answers. I'm so disappointed. After all this years, MWEB just closed their eyes and are forcing me to cancel my service.