What Happens If I Need To Update My Marriott Bonvoy Details?

If you need to update your Marriott Bonvoy details, or for any other query directly relating to your Marriott Bonvoy account, you will need to contact the Marriott Bonvoy Customer Care team directly. You can contact them via the following methods:

Visiting: https://www.marriott.com/marriott/contact.mi

Calling:  +0080 218 2008 (from the UK), or +4420 39019118 (from outside the UK).