Bill

[Mcg]

I’ve paid my bill yesterday and I’ve still not able to make outgoing calls yet

[Bambino]

@Mcg The system may have not updated yet. Try turning your phone off and back on again.

Guide: Coronavirus Community Help and Support 

[jonsie]

It could take up to 48 hours

as advised keep rebooting the phone

If You need to call O2 then choose any of the options, fraud etc
Everything is taking longer due to the lockdown. Call centres and social distancing means limited staff to handle all the queries. Patience needed I'm afraid.
https://community.o2.co.uk/t5/Other-Products-and-Services/Coronavirus-Covid-19-Community-Help-and-Su...
Other numbers to try
0800 977 7337
0800 587 4005
0800 0901808

[Mcg]

No bother thanks for the help

[jonsie]

You're welcome @Mcg 

Hope it's reconnected soon