I have a dual SIM phone and got a local SIM for a trip as ID doesn't offer any packages for data or calls.
I disabled my ID SIM upon leaving the UK so as not to incur an charges.
Upon my return my SIM is no longer being recognised by my phone.
The SIM has no sign of physical damage
I am very unhappy as this leaves me without internet or calls travelling back from the airport using public transport on a strike day