@wrongwaywatson Here’s how you do it:
Go to a slot machine and create an account - easy to do: touch medallion to medallion sensor on machine. You will be prompted to set up account and will Select preferred language, enter birthdate and four digit pin. Now you are ready to play. You will see an area where you can get credits by charging to your ship board account. Select that, enter amount, enter pin to confirm. The credits will then be loaded to machine. When you are ready to cash out, select that option and the credits will be loaded to your medallion. You will see the credit on the screen drop to zero and get a message saying credits have been successfully transferred back to your medallion. You then go to the cashier and ask to cash out.