You do need to book using the link in the United page I included. But you could do it manually and punch in UUAA084.
I just checked into AVIS at SJU, booked an Intermediate and got a full sized brand new Ford Taurus. Yeah, I know its a Taurus but it's new and its got a V6 engine. Trust me, anything is better than those Malibus and Corollas. I did print out that website to give to the desk clerk who did keep it. So I'd recommend printing it out.
Cheers
Originally Posted by Insiderdude
For the UA coupons listed in the OP's first post, do we need a give them a physically printed coupon or will the coupon code in the reservation be good enough?