Renewal by Andersen review: Window/door replacement

I had a representative provide consult and contract. He did not provide all the information needed so that I was aware of how things would be processed. Less than one week later I got notice from Greensky financing that half the project cost was forwarded to Anderson. I was given the option to reject this payment and I did. I contacted Sales Rep and he was curt "that's how it's processed so we can order the products". He had not told me this during his visit, I have NO firm install date, and I told him I would not have agreed to this. His response "It's in the contract." I told him I wanted to speak to his supervisor. This did not occur, he instead called me back and left a brief VM but with no details. Greensky forwarded the funds even though I specifically rejected it and told them this via email and phone. I have not heard from ANY leadership at Anderson even after sending messages through the rep that initially came to my home to set up a consult. I was told if I cancelled after 3 DAYS of signing contract there was a charge of 25%! This is ludicrous, unethical and predatory.