I’m traveling YUL-YYZ, connecting to DUB in paid business class (listed as P class on my receipt). The ticket was issued on UA stock.

Does anyone know if I’ll be eligible to use the Signature Suite or for the chauffeured transfer to the Signature Suite from a domestic flight? In the past, my tickets have always been purchased through AC but for since my return from LHR to SFO is on United, I ended up buying from UA.

Thanks in advance for your insider knowledge!