To change the email address associated with your Decathlon Ireland account you simply need to follow the steps listed below -
1.Login to your account as normal and under the account tab in the top right of the screen (on desktop only) and select "My Sports Profile" as seen below.
2.A new tab will open and you simply need to re-enter your login details and proceed to your personal homepage. Once here you can select "Personal Information" as seen below -
3.Once selected you can now update all details relating to your personal information including name, date of birth, contact number and your email address.