iPhone going into S.O.S. and eSIM used on another phone

If you see No Service or Searching in the status bar on your iPhone or iPad (Wi-Fi + Cellular), your device isn't connected to a cellular network. If you see SOS or "SOS only" in the status bar, your device can still make emergency calls.

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

There are three mutually exclusive parts in your query.

1. SOS Mode
2. Transfer of eSIM
3. Thousand of Dollars charged.

My next three posts will answer each of these.

Transfer a physical SIM or eSIM on your previous iPhone to an eSIM on your new iPhone after setup. On your new iPhone, go to Settings > Mobile Data > Add Data Plan. Choose a mobile data plan to transfer from another iPhone. If you don't see a list of numbers, tap Transfer From Another iPhone.

About eSIM on iPhone - Apple Support (IN)

If you feel an unauthorized person/app is remotely using, controlling or monitoring your device, then that is possible only if you have done one or more of the following Don'ts...

1. Don't hand over an iPhone to kids or to a stranger without Enabling Guided Access
2. Don't share Apple IDs
3. Don't Jailbreak
4. Don't share sensitive information pertaining to your device
5. Don't give in to Phishing
6. Don't plug in your device in Airports and Public places through third-party cables and trust the device. Beware of Juice Jacking. (Especially in India)
7. Don't leave your iPhone unlocked and unattended in public places like offices, schools, malls, etc.

If one of the above is true then quickly change the Apple ID Password and Return iPhone settings to their defaults.

I had the SOS issue today when my new iPhone arrived. I did the "transfer from old iPhone" option but it was stuck on SOS. Then I remembered a few years back that I needed to swap the SIM cards. I did that and it works great now.