Hi ​@Keithf, 
 

I’m sorry to hear your new Pay As You Go SIM isn’t working in your iPhone I understand how frustrating that must be.

To get this resolved for you, please contact our Live Chat team, who can check the SIM activation and your account in more detail and help get you connected as quickly as possible.

You can reach them here: https://www.idmobile.co.uk/live-chat

They’ll be best placed to investigate and get this sorted for you.

Owethu