Sorry if this is a bit of a silly question, but the last time we went to Cuba (Holguin) we didn't have the new bills yet. We want to make sure we won't have a problem exchanging the new $20 bills at the cadeca/hotel (we are staying at Brisas).
I've heard that they are very fussy on the bills being in good condition in Santa Lucia.
Thanks for your help! :D