Three to O2 - Number Porting

[EffectOne]

I have just switched from Three to O2 (yes, due to inclusive roaming!).

I called O2 yesterday around noon with my PAC code to get my number ported over and was told this would be complete today by 6pm.  This morning, I received no text messages from O2 to tell me to turn my phone off but had done so anyway the night before.

Switching it on at the moment shows that the sim card is currently non-functional with the mobile having no services.  My S22 Ultra is stating "SIM 1 not provisioned".  Putting it in my old Pixel 5 results in the phone recognising it is an O2 sim but informing me it is not registered on the mobile network.  Additionally, last time I checked my Three sim was still working and was registered to my old number.  This prompted me to talk to O2 customer services using the online chat.

I have now had two conversations with them.  In the first, the operator confirmed that the port had been completed at 8am this morning and that I should wait 24 hours for full functionality to be returned to the handset.  The second confirmed that my sim card (I provided the serial number) is now registered with my old number and, again, I should wait 24 hours.

I don't see how this can be the case given that my old Three sim still functions using my old number.  Additionally, while I hate to say it, I am not confident that the operators really understood the nuance of my questions given that English is not their native language.

Could someone possibly shed some light on this situation and suggest a sensible next step for me to take?  It is quite frustrating and not a great introduction to O2.

Thanks

[MI5 · Accepted solution]

@EffectOne 

If you message O2 on Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG) , they should be able to help you with this.

Guide: Migration & porting into O2