on 27-03-2020 15:50
on 27-03-2020 15:52
See here Guide: Unlocking an O2 phone to use a different SIM card
on 27-03-2020 15:52
on 27-03-2020 17:22
on 27-03-2020 17:39
on 27-03-2020 17:39
You just need the IMEI number to complete the form.
If it won't go through, you'll have to call customer service Guide: How to find help & contact O2