In a similar way, you can also find someone to sell you Bitcoins in return for personal checks. They allow for rather quick Bitcoin purchases on a peer-to-peer basis but as they announce on their website, if the payment check is sent in the mail, it an take up to a week to have the payment cleared and the Bitcoins delivered. Bittylicious Buy Bitcoin UK residents can purchase bitcoins within 15 minutes via online bank transfer. Disclaimer: Buy Bitcoin Worldwide is not offering, promoting, or encouraging the purchase, sale, or trade of any security or commodity. Ledger Nano S. Coinmama Popular. Thus, all the ways of buying Bitcoin with personal checks are time-consuming and somewhat inconvenient.