A check for a $19.95 service charge is enclosed. Your service technician replaced the compressor fan motor on my American Standard air conditioning unit, which is under warranty. I'm sending the check because your technician wouldn't accept it. Let me explain....
Unfortunately, a misunderstanding occurred about the service charge. First, I needed to sign the invoice to the manufacturer, verifying it was correct. So I insisted the technician fill in certain information (parts replaced, work performed). Then I questioned the service charge, since the unit is under warranty.
In brief, your technician seemed somewhat offended and wouldn't accept the $19.95 when I offered it. However, I understand how he felt, and he was courteous and professional. Plus, he did an excellent job.