The fitness business you attend can enable a feature to collect your marketing preferences.
This preference is set during sign-up, but you can also update it at any point if you change your mind.
To do this head to My Account >> Profile and scroll down to the Marketing Preference section, then click 'edit'.
Now simply change your preference as desired and click save to update.
Note. It may take several days for your new preference to take effect. Please contact the fitness business you attend with any questions or concerns surrounding your marketing preference.