my sons phone is still not working after a

[IanR1000]

after a month of asking.

[MI5]

@IanR1000 

This is a customer to customer community, not O2.
You need to contact O2.
Message them on Social Media. Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG) or give them a call on 202 or 0344 809 0202 (contract) 4445 or 0344 8090222 (PAYG)

[Oxonian]

@IanR1000 

Can you tell us a little more please about the problem ?

Is it a network or SIM problem ?

Is it a handset problem ?

There are several basic tests that you can do to isolate the issue, such as trying a different SIM - maybe from a different network - in your son's handset and trying his SIM in someone else's 'phone. 

Please post again with a little more information.