I have been using mostly Meguiar's products for years. This return and replacement was totally independent, and without any mention of any previous purchases. Since I don't buy from Meguiar's direct, there is no way they could have known about prior purchases. Because of the excellent customer...
I was expecting to receive my repaired polisher returned to me. But Meguiar's sent me a brand new polisher, including bag and accessories. Now that is really fantastic customer service. I will only buy Meguiar's products for my cars and boats.
Since there were no instructions with the spindle housing, I contacted Meguiars. They said to send the part and the polisher back to them for repair. So I did. I'm expecting the repaired polisher back soon.