Edge may be preventing you from viewing the promotions page based on the Tracking Prevention settings you've enabled. To resolve the issue, you can follow the steps here:
- Choose the Menu (3 dots) button in the top right corner of Edge.
- Choose Settings from the Menu.
- On the left, select Privacy, Search, and Services.
- Select Basic or Balanced.
- Log out of your Massagebook account.
- Log back in to your Massagebook account.
After these 6 steps, you should be able to view the Promotions page without further issue.