Slow Speeds and High Latency in Washington DC area

I have been experiencing slow speeds and high latency since 18 December. I have the 50/10 service. I called into tech support and received an automated message stating that there was an issue in the area. I left things alone an and my speeds returned to normal that evening. On the afternoon of the 19th my speeds dropped off again, sometimes as low as 2Mb, but never higher than 5. I called in and went through the standard troubleshooting. Reset the modem, hooked the laptop directly to the Gateway with no change in speeds. THey scheduled a tech to come out on Sunday the 21st. That day he check all the levels, reterminated coax and even replaced my modem with the Cisco DPC3939B. No change to speeds. My technician called in to his help line and then advised me that there might still be higher level issues going on in the area. He gave me the number to Desmond, the Technical Operations Supervisor for Washington, DC. I spoke to him in the evening on the 21st briefly and he was supposed to call me back in an hour. Didn't hear back from him. Called and left a message on the 22nd in the morning with no reply and just tried to call him again with no answer. The tech support isn't very helpful. They don't see any issues going on, and they can't give me any solid answer.

Things happen, and equipment breaks. I'm not mad about that or even if it takes a while to fix. I'm more upset when I can't get a straight answer about it or don't receive a call back when I was promised one. I've been a happy customer for a year in this location, with solid service. I don't want this experience to ruin it. Below are my tickets that were opened and closed.