Fix BT Mobile problems

• I've got a problem with my SIM
• How do I get a PIN or a PUK code for my mobile phone?
• Understanding BT Mobile charges
• My phone has been lost, stolen or damaged
• I've got a problem with WiFi and 4G calling
• Accidental roaming
• I've got a problem using BT Mobile abroad
• I've got a problem with a BT Mobile order