Regrettably, we are not able to change the email address associated with your Nature+ account on your behalf.
However, you can update your email address by logging into your Nature.com account and following these few steps:
Click on the Account Settings.
You can then choose the details you want to change by selecting the relevant button, as shown in the image below, enter the new details, add your password, then click Update Email:
This change will filter through to your Nature+ and Shopify accounts.