I would second the, "If they call you outside of your RAP, there's always a reason". On the SAPA reserve forum there's instructions on how to view your schedule and bucket list with a pending notification. This can be helpful to have a picture of what they did if you choose to do battle.

Never do a favor without instantly getting something in return. There is no scorebook, and they will call you back and screw you over 2 minutes after helping them.