My ongoing Battle

So here it is five weeks into my life as a comcast customer and my trouble with the tiling is still unresolved. Four days ago a line tech came by, cut in a new tap, came into my house and looked at my box for 2 minutes and declared it fixed. Later that day, Comcast called my friends cell phone and told her that the problem was repaired and if I had further issues to call customer service. They did not ask if it was fixed, they decided that they had enough of us and said it was done. It does not stop there. I opened the mail yesterday and had a bill for $206.00 marked past due. How can I have a past due bill when I just got service for the first time on July 13th, and on that date they took a 200 dollar check. 100 dollars of that check went to the required deposit, and I can not get a straight answer from comcrap on where the rest of the money went. That price is insane. I should be charging them for all the time I have wasted. At this time I am looking into the possibility of a lawsuit against comcast for their shady practices.