I have had this SIM for a long time now and for the past few days/week or so my phone has not been able to connect to the mobile network. Should not be due to bad coverage as it is the same in central London, and the issue is not bad reception, but outright no connection.
When I choose to manually select network it lists plusnet, EE and others but as "(forbidden)".
Any help would be appreciated.
Fixed! Go to the fix.