My page https://christiangays.com/my-coupon-codes/ is only available to Paid Members. The default text is "Please login to view this content. If you are not a member, please take the time to Join Us now."
I would like to change it for that one page to "You must be a Paid Member to have access to coupon codes. Please consider upgrading."
I'm not sure how to use "in this text domain" so I put /my-coupon-codes/ but it doesn't work.
Can you tell me how I should do this please.