I called Tristar to see if they had credited my Visa for the defective and cheap Pasta Box Express pans that I sent back. I sent it by delivery confirmation, so that they couldn't say "We never received it" routine. In one day, I went through three people and each one of them had a different take on why I had not got my money back.
It was a "nightmare" with each time ending in my supervisor will take care of this lost credit.