working now, received the following email explanation
You can now access the app as normal
You may have had trouble accessing our app earlier due to a problem experienced by our technology provider. This has now been resolved, and we have been notified they are no longer experiencing availability issues.
You should now be able to access the Tide app, as well as any other apps that were affected.
We apologise for any inconvenience caused. If you continue to experience this problem, please reach out to our team.