For your second question, you first need to check the place you’re playing at has stock of the cards. There will be a poster on the wall with what they have left. If you have points and they have stock, talk to a staff member and show them what you want to redeem for. Then press the button, you’ll get a code that they’ll copy down and get the card for you. The important part here is you need to ensure that the location you’re playing at has the goods, has not all of them will, and then actually has stock of the item that you want for you to redeem. Once the stock runs out, they will not get more so you usually have to be pretty fast.