Unacceptable service- URGENT manager feedback requested

We have been with rain since March this year. Unfortunately the service that we were offered is not at all what we have been receiving. The internet is down more often than it is working. I am working from home and rely on my internet connection to be able to get an income. I have logged numerous reports with rain to get my internet working as it should be. Saturday the internet went down completely once again. We logged a call to rain, and Sunday morning the internet was working. By Sunday afternoon it was down yet again.. when I phoned rain on Monday morning Regina from Rain informed me that I technician or a manager will get back time within the hour on what the problem is and how it will be resolved. That did not happen. I phoned rain again after 7pm on Monday evening as the internet was still down. The consultant I spoke to was incredibly rupt. He informed me that rain cannot let me know what the cause of the problem is or when it will be resolved. He kept saying that they cannot over promise me.. I have been over promised for the last 10 months as I am paying for a service that is not being delivered on. When asked for feedback, no one can tell me what the problem is or and indication of how long it will take until the internet has been restored. There has been no attempt from Rain to resolve the matter or to get back to me in all this time with any feedback. THIS IS UNACCEPTABLE SERVICE AND I EXPECT A MANAGER TO LET ME KNOW WHEN THIS WILL BE RESOLVED!!!!