I've made multiple booth guro works and didn't know they don't accept credit/debit cards as thats what I used but recently maybe something changed. Anyway I made a "Rakuten" account and theres a link to making an account when you go to purchase something on booth, an option on the bottom. Its all in japanese so you need to try and manuever your way to the credit card info but I did it and also don't read japanese. You can do it if you really want to. Good luck man.