Disney reward $$$ question

I have my Disney reward card but how do I use it while onboard? Can I use it at bars, gift shops, etc or do I just go to Guest Relations at the end of our voyage to have them deduct the amount from the rewards card to credit our on-board account? Thanks

Tina

You should go to GS at the beginning of the cruise and have the funds added to your account. all purchases on the ship are done with your room key.

Great thanks. That is what I thought with the on-board charges but didn't know how to go about it. Thanks a million.

Tina