Hey quick question

i know this may sound noob but bare wit me cause i never bought or had one before:

i just got my reward from the SvS round 2 event and i got two base character changes and some other 90 day stuff. and im wondering can i sell the 2 base changes for GP cause i dont want them.

Simple YES or NO will do it, nothing else thanks in advance.

Can u check bro I'm not at me house where my laptop is at. (Using MPGH Mobile right now)