From what you wrote I have a hard time understanding if it actually was the manufacturer of the product or the dealer of the product who made the promotion for a qualifying purchase. You need to contact the manufacturer of the product and other dealers for more specifics about the promotion to see if you actually qualified for the free thermostat and the $1,000 rebate. Be prepared to provide the manufacturer and dealer you bought the product from with the documents needed to see if you qualify for the thermostat and the rebate.Hopefully you printed out the promotional documents for safekeeping from the manufacturer's website about the product you bought where you want the free thermostat and $1,000 rebate.The contractor who installed the hvac system in your home most likely was not an employee of the system's manufacturer. If so, he would know very little about the promotion you want the benefits from.If you have the website promotion document from the manufacturer's website printed out, dealing with the manufacturer directly and send a copy of what you have would be the first thing to do to get what you believe you are entitled to.Good luck.