Refund not remitted

I have not received a flight refund. The airline ( BA) have assured me it has been remitted and have given me a reference number. They said it should have cleared 3 days ago. How do I chase it up?

You will need to contact support through the app.

From your smartphone, Click here to chat to Monzo Support.

You need to speak to BA, not Monzo.

Monzo Help - Refund hasn’t arrived.

Usually takes up to 5 working days from being processed.