On Board Credit - Any limitations

[kenasch2]

We have an upcoming cruise on Regatta May 18th with on board credits. Is there anything that can't be used for credit, such as gratuities, laundry, gift shop, casino, all excursions etc?  I assume anything that can be put on your account would qualify but just want to make sure. Thanks. 

[LHT28]

I do not think you can use it in the casino  or Future cruise booking

 

I have not tried to use it for either of those options