Merge Payees doesn't show Monzo contacts you haven't sent money to

Issue: I went to merge a contact’s old bank account with their Monzo contact, as they’ve recently joined Monzo. However, when I go to merge it this Monzo contact doesn’t show in the list. Found the below quoted post and it seems to line up with this, so I think it’s because I’ve not sent money to this Monzo contact yet.

Details to reproduce: Have a new Monzo contact (via their mobile number/your phone book). Try to merge an existing manually added non-Monzo payee with them. The list of payees to choose from will not show the new Monzo contact.

OS: Android 8.1.0
Device: Moto G5 S Plus
App Version: 3.10.0