Over the last year I have had the need of various services and so I did what many do, google for company in my area and looked at their web site. Then I would use their CONTACT US link to send an email describing what I was looking for and to be given a quote. I have never received an answer from any of them - nobody is checking the companies emails!
I suspect the person’s who’s job it was to answer e-mail is no longer employed and no one else in the company knows they have an email account.
I contacted Honeywell and they sent me to a separate tech service that charged me for advice. Though the repairman they connected me with was quite good (all communication was via text messaging--a real pain in the ass), the entire process cost me more than the new thermostat itself.