Paid $16,000 for new Bristol windows with the prom...

Paid $16,000 for new Bristol windows with the promise to save 45% off electric bill. Although a nice looking window, it didn't lessen my bill AT ALL. Had sticking issues with windows, was told to use a furniture spray. fine, worked well for awhile, until the tracks got so dirty from the wax! Was told would cost $75 to have someone come out and look at my windows when they are supposed to be lifetime warranty. What a rip!