how many bottles of paint, glue, thinner, primer or putty were in your order?
with any US based mail order,,,,,,one bottle or tube of any of those will bump you off from the US Postal Service,,,,,,,,,they will even argue with you at the counter allllllll day if you try to mail acrylics
once the USPS is bumped out of the picture,,,,,that leaves Fedex or UPS as the shipper,,,,it is the same for all model vendors in the US,,,it is not a Squadron only deal
Rex