If you'd like to add a support email or support desk URL to your membership website you can do it in the Membership Wizard.
Once you've done that select the Membership that you'd like to edit.
Click on three dots to open secondary dropdown and select 'Edit membership'.
Select 'Settings' Tab.
Navigate down to the 'Support' Section of Settings and locate the URL/Email field.
Input your support URL or Email.
Click 'Next' to store your changes permanently in Member App.