Problems with o2 including bill

[Simon1978]

I have an outstanding bill despite changing to a new contract in June which is twice the cost of the original.

This bill should not be charged.

I also have issues with my wife's phone whom is unable to use data or call, she was never sent a sim card and apparently its automatic however it doesn't work and we are paying nearly £120 per month each for this poor service

[MI5]

@Simon1978 

You can reach the Payment Management team on 0800 902 0217.
The opening times are:
Monday to Friday – 8am to 8pm
Saturday – 8am to 6pm
Sunday – 9am to 6pm