I've worked out it's not the sim it's the phone
the phone was purchased from sky in August 2024 with data package
in October 2025 less than 2 months in the "sim not available" message appeared. Hours of phone calls with sky then apple resulted in wiping the phone and eventually it started working,
12 months on almost exactly / the same issue - sim not available - sim works in husbands phone, his sim does not work in mine.
phone now out of warranty. Cannot afford to be without a phone.
sky solution for me to pay to swap phone, Pay back half of my credit agreement balance and more monthly for iPhone 16,
nit happy, not acceptable - I want a new phone or cancellation of the whole contract and I walk away not owing anything ...
