SIM Card locked several times on my iPhone 13

With a SIM Failure, there are a couple of steps you can try:

• Force Restart phone - Force restart iPhone - Apple Support
• Reset Network Settings - Go to Settings > General > Transfer or Reset [Device] > Reset > Reset Network Settings. This also erases WiFi passwords, so you will need to login to WiFi again.
• Review this Support Article:

If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad - Apple Support

If no luck there, the next step is to contact your cell provider to replace the SIM card. And finally, if that did not resolve the problem then, you will need to take your phone to Apple for diagnosis of a hardware problem.

Only the carrier that locked it will be able to remove the SIM lock. There is nothing Apple, another carrier, or even you can do to remove the lock.