[iOS] Deletion of non Monzo Payee Bug 🐛

Issue: When I delete a non-Monzo payee the app crashes
Details to reproduce: As above :point_up:t4:
OS: ios13
Device: iPhone X
App Version: 3.0

I am also seeing this behaviour.

iPhone 11
iOS v13.3
App version 3.12.1

The payee still deletes though.