It's possible that your device is having trouble finding your network, and you have to select it yourself. Go to Settings> Connections > Mobile networks > Network operators. A list of network providers should show up. Select yours and see if this fixes your problem.

Although Samsung touted the S22 Ultra's Gorilla Glass Victus+, the device begins showing scratches at a Mohs hardness level 6 with deeper scratches at level 7.

Dab a small amount of toothpaste onto the end of a cotton swab or clean, soft cloth. Gently rub the cotton swab or cloth in circular motions on the screen until you see the scratch go away. After this, wipe your screen with a slightly dampened cloth to remove any excess toothpaste.

Your phone case's job is to protect your phone so why would it scratch your phone? Luckily, it doesn't actively scratch your phone but only when dirt, sand or any other grime gets inside. If you think about it, we're taking our phones everywhere, leaving them on several surfaces, inside your home and out.