Posting again as the current marked ‘solution’ is not a solution and my answer was deleted for some reason…
- go to wise.com
- reset your password - Monzo creates a Wise account on your behalf using your Monzo email address
- log in to wise
- go to the recipients section
- and finally, delete the recipient
This is unfortunately the only solution at the time of writing. I’ve made a suggestion in this post to fix it - Wise International Paymets - Recipients