This is only thanks to a deal Cathy at HQ has managed to do with the Electoral Register. If you are planning to vote for someone else, registration is already closed, so there’s no point trying. You’ll just complicate things with the Electoral Register and they’re likely to send you a letter/court summons costing you a lot of money. You might even go to prison.
To Vote For Me And Me Only: https://www.gov.uk/register-to-vote
It’s a pleasure to be the only candidate you can register to vote for.