Unable to add eSIM on my iPhone 12

Please reset your network settings and then a forced restart of your iPhone.

Reset your network settings

If you're using iOS or iPadOS 15 or later, tap Settings > General > Transfer or Reset [Device] > Reset > Reset Network Settings.

If you're using iOS or iPadOS 14 or earlier, tap Settings > General > Reset > Reset Network Settings.

This also resets Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you've used before.

Force restart iPhone - Apple Support

Kristi_773 wrote:

I couldn't find any number for Albania.

It would appear you have the wrong model for your region.

Model numbers: A2172 (United States), A2402 (Canada, Japan), A2404 (China Mainland, Hong Kong, Macao), A2403 (other countries and regions)



If you’re in the US please call 1-800-MY-APPLE or outside the US, consult the support articles below.

Contact Apple for support and service - Apple Support

Genius Bar Reservation and Apple Support Options - Apple

You iPhone model is intended for the US and you may have difficulties with a repair or service. Please use the links below to contact Apple Support or an Apple Authorized Service Provider.

https://getsupport.apple.com/repair-locations

Choose your country or region - Official Apple Support

Please contact your cellular service provider’s support team or visit one of their support and service centers.

But, that model is not compatible with the eSIM service provided in Albania. Instead, check for the possibility of using a Nano SIM for service there.

What iOS version is it using?