Supersonic sub service

A nightmare since I signed up. Extremely poor service. Signed up end Jan. Had techs out at least 7 times to try to correct faults. Customer support techs useless. Have had to throw tantrems to receive any firm of honest support. I receive no feed back nor do they return calls although the promises to do so are endless. Impossible to talk to a superviser or manager. They are always unavailable. Without a doubt the worst service I have ever had the misfortune to encounter. Lots of promises and assurances... ****** all action. I have to threaten them to get them to send out a tech who does a patch job then departs without fixing the root cause problem. Then takes 4 to 7 days to them back again. Make you endless promises to get you to sign up then you have to fight to get continuous uninterrupted service. On a scale of 1 to 10 they are minus 5.