iPhone Snapchat block

It is not an issue with the phone. The phone is not denying you access.

Snapchat have banned that device, permanently, from using their service due to violations of their terms of service.

There is nothing anyone other than Snapchat can do to reverse that, and historically, it’s proven nearly impossible to get them to reverse the ban.

Hi tamzin67,

Thank you for using the Apple Support Communities! If a specific app on your device is not allowing you to log in, you may need to continue working with the developer of the app, as they will be the experts for their app. We would also recommend the additional steps listed on the article below that can help:

If an app on your iPhone or iPad stops responding, closes unexpectedly, or won’t open

1. Close and reopen the app

Force the app to close. Then open the app to see if it works as expected.

2. Restart your device

Restart your iPhone or restart your iPad. Then open the app to see if it works as expected.

3. Check for updates

To see if updates are available for the app, open the App Store, tap your profile icon, then scroll down to see if updates are available. If updates aren't available for the app, update the software on your iPhone or iPad.

4. Delete the app, then redownload it

Delete the app. When you do this, you might lose data that was stored in the app. Then redownload the app. Then check to see if the problem with the app is fixed.

Hope this helps!

Have a great day.