Originally Posted by
lax2jfk2lax
If you only have GPU's in your account, the website will NOT allow you the option to use them if you are on a Z, P, S, T, K, L, G or N fare domestically. Even if you call you can run into a stern "this is the rule" agent who will note it on your record.
I had a 1K sponsor my MIA-EWR-HNL r/t w/ 4 GPUs on the phone, and all 4 show either confirmed or waitlisted segments on my reservation page. I'm on a G fare.