Worst ISP ever!!!! Support is a foreign concept to them

Worst service EVER!!! I am paying for a gigabit line at RSAWeb. I am not even getting 300mbps. I've reported it numerous time, but have been met with a total lack of will to assist. Even telling them that I'm sitting less than a metre from the wifi router and that its running 5ghz does not really push them to assist. But luckily its month to month, I'll find an ISP that wants the business and am willing to provide the support. Oh they are quick to sell, but not really interested in providing support