VERY DISAPPOINTED - pathetic actually!!

So it pains me to do this - dont even know if there will be anything to come out of this but here goes - I have been with RAIN for a long time & have always highly recommended them as an internet service provider - The speed was always good & I had no problems but for the last month or so my internet speed is basically - well - there is no speed to speak of. I have reported the matter to support - they kindly said they would escalate the issue to networks as I was not satisfied with the answer or non answer I was given by email support. I am on the 24/7 package with up to 10mbs - and it was working fine - until recently - 30 days ago or so. I have now sent over 8 emails with screen shots of my RAIN Speed Test and still I get no response - I work online and this is effecting my work and my money is directly linked to my work output & how quickly I can get it done. I dont know what more to do as there is no contact number only email - VERY DISAPPOINTED - this is not how you treat clients at all :(