A FlyerTalk Posting Legend
Join Date: Sep 2009
Location: Minneapolis: DL DM charter 2.3MM
Programs: A3*Gold, SPG Plat, HyattDiamond, MarriottPP, LHW exAccess, ICI, Raffles Amb, NW PE MM, TWA Gold MM
Posts: 102,617
It's likely that the A is nonrefundable and has a $200 change fee if it's a domestic route. The P might or not be nonrefundable/nonchangeable, largely dependent on how expensive it was. Many (most?) markets have restricted and nonrestricted P fares.
BTW, are you really concerned about refundability, meaning that you get a refund to the original (credit card) means of payment possibly after paying a fee, or do you mean changeable, meaning that you get a DL credit toward another ticket, again possibly after paying a fee. These are technically different concepts.