My phone is staying in SOS mode. I contacted my carrier and they stated it was an Apple issue can you help me?

Try to do a force restart -> Force restart iPhone – Apple Support (UK)

If it doesn't help, go to setting - Emegency SOS -> turn Off the options.

If it doesn't help, -> remove and reinsert the SIM card.

If it doesn't help contact your carrier, maybe the SIM card is damaged, ask for a replaced (new) card. Normally it is free.

Ask also to check if the SIM tray is bent, as even a tiny misalignment can cause the SIM card to not fully connect with the internal contacts in your iPhone.

If it doesn't help , see these Apple articles below:

If you see No Service, Searching, or SOS on your iPhone or iPad

If you see No Service, Searching, or SOS on your iPhone or iPad - Apple Support

Manually update your carrier settings on your iPhone or iPad

Manually update your carrier settings on your iPhone or iPad - Apple Support

Update your network provider settings manually on your iPhone or iPad

Update your network provider settings manually on your iPhone or iPad – Apple Support (UK)

Read also -> Related Article: If you can't make or receive calls on your iPhone again.