Join via the link and order a physical card and make 3 ยฃ5 minimum payments. Once joined you can invite friends and earn ยฃ50 for each friend you invite.
Follow the link to join Monzo and order your card. (You can use your virtual card straight away). You will receive ยฃ5 once you have made a transaction of any amount and further ยฃ5 to refer as many friends as you like.