---
title: How will I know whether the registered mobile number or email address is the right one?
description: contact mob number email authentication
---

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# How will I know whether the registered mobile number or email address is the right one?

The partially masked mobile number and email address will be displayed on the authentication page so that you can check that those details are correct.

If the mobile number and email address are incorrect, cancel the transaction and either update your information on the portal or contact Customer Services by calling 0208 050 5813.

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