Charlie,
Welcome to POG. Glad to have you with the group.
So sorry to hear about your experience with Mira Loma. We have all of our service done there, including window replacement of which we have had a total of 5 done in the past. We always ask for "OUR" service tech, Tony. He's young, but well versed in how repairs need to be done. Arthur has also replaced our windows.
We had a problem with billing once when we had a window mechanism replaced and it broke for the second time in less than a month. I wrote them and explained that it was a defective part or incorrect installation. They agreed and reversed the charge. Talk with Dee, the service writer, and see what you get. If not happy then I agree with Garyde, going to upper management is in order. Good luck.
Dee