You'll need a piece of ID so we can make sure that itโs really you ๐ต๏ธโโ๏ธ. Apart from that, you wonโt need anything at all!
If you're located in the ๐ฌ๐ง United Kingdom you will require a passport to complete the sign-up process.
If you're located in the ๐ฌ๐ง United States you can use either your passport or driver's license.