I contacted him and asked about the high shipping and indicated the small die
could be sent for $2.66 in a bubble envelope.

He responded that he always ships Priority with insurance and tracking no matter how
small the item.

THEN he complained that I was trying to run his business and blocked me from bidding.

Several years ago there was a seller on EBay that had a ton of chip and dice dies.
He wanted , I think, about $10,000.00 for the lot.
I contacted his at that time and suggested that if they didn't sell that he could
donate them to the club museum and take a tax deduction.

His comment back was - "Fat chance!"