I called to schedule an estimate to replace my AC ...

I called to schedule an estimate to replace my AC condenser unit and take advantage of their advertised 50% off Black Friday deal. The operator confirmed that they were offering 50% off of services and scheduled my appointment. The technician arrived and said 50% was only for complete new system installations. The telephone operator didn't mention that! So after the technician attempted to up-sell me on a new system (claiming my old system would never work right even if they did the repair I requested), I said I only want the quote for the replacing the condenser. He left, and they called me 3 days later to make sure I didn't need anything else; I said "I still need the quote," and they said it will be emailed soon. It has been 3 months and I still haven't received the quote!

TL;DR Pro-tip: John Wayne uses deceptive sales tactics to get a technician into your home. Then if they can't upsell you to a "WAY MORE expensive" system, you're dead to them.