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Monzo customer service number +442034451324

By Charlotte Pemberton, Financial Journalist · Published 23 March 2026 · Updated 23 March 2026 Monzo is a UK banking institution whose customer service can be reached on +442034451324 from the UK, or +44 20 3445 1324 from abroad. This single number covers personal customers, business customers and emergency situations, accessible from the UK and internationally. Version 1.0 · Updated March 2026 Quick answer: The phone…