Replacement SIM not working

[lawts]

I visited an O2 store yesterday to obtain a replacement sim card.

Over 24 hours later the sim is still not working

[lawts]

I have tried switching on and off (multiple times) and I've tried removing and reinserting the sim card.

[pgn]

Are you a Pay Monthly or a Pay As You Go user, @lawts?

O2 Shop staff should have moved your number to the new SIM, including any remaining balance if you are a PAYG user.

All I can suggest is to contact O2's Social Media Team in the morning, the ways to do that are contained in the link just below this post. Good luck, @lawts.