Luno allows users in Europe to purchase bitcoins with a credit card or debit card. The best way is to read through the description for each exchange. Should you buy bitcoin? Of course, that trajectory is not without noise. The key in the wallet is used in accessing Bitcoin address. As the most popular form of cryptocurrency and the blockchain technology that powers it Bitcoin is now widely accepted around the world and has a growing number of applications. You may be asked to upload a scan of ID.