Hi I am getting this message continuously on my mobile since have inserted the another sim in my new iPhone 12 Pro yhat “ your primary sim has sent a text message

Hi Rebecca2085,

We understand that you're receiving a message that your SIM sent a text message, and we'd like to help.

To help us get a better understanding of the issue, we’d like to ask a few questions.

1. Does that message appear randomly, or does it appear when you attempt to do something specific on your device? For example, does it appear after you attempt to send a text message?
2. Are you using Dual SIM? More about that here: Using Dual SIM with an eSIM
3. Does that message continue to appear after restarting your device? Restart your iPhone
4. Do you have an available carrier settings update? Manually update your carrier settings on your iPhone or iPad

Thanks!