Hi
My name is Daniel. I am an Independent Advisor.
Please follow these steps below to reset the MS Team mobile app:
Log out from your account > uninstall MS Team app > Restart your phone > Please go to App Store for IOS users > Reinstall MS Team app
Disclaimer:
Please note, this is a peer-to-peer support forum meaning I'm just fellow regular MS Team forum users like you who are trying to help other MS Team forum users with their MS Team issue. So in this case, I'm Non-Microsoft Staff I don't have access to your account nor I'm authorized to do so. I hope we can have a mutual understanding from the beginning to prevent misunderstanding.
Kind Regards