No Mobile data connection with Unlimited

I have recently had no Data connection away from Wi-Fi. I have checked the mobile connection information for Smarty, and it matches that on my phone im on iPhone iOS 26 has anyone else had this issue? i have tried resetting the data information and turned the phone off and back on, but still no data away from wifi!!!!  

Going nuts trying to work out what is going on. My wife is on Smarty also and has no issues, and her connection info matches mine  HELP