I am paying for a 20 download speed package and it...

I am paying for a 20 download speed package and it is constantly dropping to 3 and 4 on the speeds. I have called Gtek many times and they always have some excuses to why but it's never their stuff. Even when they came out to check the speeds they said it's fine when they tested on their computer so I asked to test on mine because my computer is the one staying at my house. Low and behold my computer still showed low speeds! As for the techs, they try to move times around and dont show up on time. Gtek dont give you what you pay for and expect you to pay for what you're not getting!! I am going to go back to a company that even though they cannot give me download speeds as high as 20 I did receive what i paid for with them unlike gtek.