I think it may be because before the size for thickness was 1' and now
it's 0.25"Since there is no way to input the thickness size and the
minimum you can input is 1", it is not showing the option for the eBay
envelope as available.
The problem is that some sellers print the shipping label without having
the merchandise. This practice is to conform with eBay shipping
guidelines but the problem is that eBay considers item shipped by the
origination of the label and not by the car...