Revolut, Wise, and many other banks and fintechs ask for a phone number for SMS verification and account security. A real UK +44 number is accepted by most of them. BuyUKeSim provides UK eSIM numbers: real mobile lines, not VoIP, so you can receive banking SMS and use 2FA without issues.
Why use a UK number for banking?
If you have a Revolut or Wise account (or similar) and need a UK number for verification or recovery, a real UK eSIM works. Virtual numbers are often blocked; a real +44 number from BuyUKeSim is a mobile line that these services accept. Pay with crypto, get the QR, then add the number to your bank app.
For "UK number Revolut", "Wise verification UK number", or "banking SMS UK", a real UK eSIM from BuyUKeSim is a reliable option.