I'm in a similar but opposite situation... I have an R1T with 22" wheels. The truck did not come with a spare. For the infrequent use, I'm happy with the compact spare. I ordered the jack kit without any issues. But, they refuse to sell me the compact spare because, "it is only for the R1S"...
I'd consider shipping but it would be very expensive -- probably around $100 as a custom box would be required. (UPS would probably do a box and ship.)
Same thing happened to me with the same reason for adjustment. I protested online, resent same information I provided initially, and added a picture of the door jam tag. It was approved.
No idea why it was initially rejected.
Selling because we traded for a new R1T that has the powered cover. The WeatherTech cover is very sturdy and installs easily to the factory rails.
I think it's a fair price at $500 but will entertain offers.
Again, I'll meet the buyer at a mutually-convenient location.