The full matrix code my Blast First original reads:
Side 1 (machine stamped): BFFP-4 A-2U-I-
with "A Porky Prime Cut" hand-scratched below it.
Side 2 (machine stamped): BFFP-4 B-2U-I- with
EVERYTHING TURNS BLACK TO BLUE hand-scratched and "BILBO TAPE DIR" hand-scratched in smaller lettering further around.
I don't know that seller, but I'd certainly lean towards yours being a boot (as I would with just about any previously undocumented coloured LPs that show up out of the blue, given the avalanche of similar boots for other artists that's appeared over the past few years). Doubt this'll be the last SY one either.
You can try asking the seller for a partial refund, but I wouldn't get your hopes up - if
this is the one you bought, it did say "reissue" in the description, and $30 isn't too bad a price - I paid almost $80 for the blue marbled Goo when
that first appeared :/
I'd offer to buy yours if I was a little more flush, but can't really justify it right now I'm afraid..