Solarshield Remodelers, INC

On August 29th, a salesman from Solar Shield Metal Roofing came to our house to give us an estimate for a new metal roof. He left us the estimate, and after we decided to go ahead with the project, we called him back to finalize the deal. When he returned, his estimate was higher than the estimate he left with us. (I have all the documents; I just need to scan them.) I showed him the original estimate he left and asked him why it was a few thousand dollars more. He said it was because we wanted the old shingles removed, so that would be an extra charge. I disagreed with this, and he said that is his company's policy, so I had to pay it. I attempted to cancel the sale, but he told me the 72 hours had lapsed, so I am bound to the contract. No work has been started and the material has not been cut yet. I actually found out that they don't even make the roofs; they subcontract out another company to do that, and I specifically asked that no subcontract work is approved, so they lied about that too. I have tried working with the company to come to an agreement, but we are unable to. I am asking that the contract be cancelled and that I am refunded the $8,000 deposit. I do not trust this company and I do not want them on my property. I am a 100% disabled combat veteran and I feel I am being taken advantage of.