Receiving some texts

I have an iPhone 12, yesterday it did an automatic update which has stopped any electronic SMS. I can still receive messages from family/ friends but not any from banks or service provider. The banks say that their is no issue and my provider say it’s not their issue? Everything worked ok until the update, I have done all the resets, shut downs, removed SIM card etc……

I have tried my SIM card in my old iPhone and it still won’t work, any ideas ?