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Can't receive iMessage since changing Sim card

Have returned from trip in Thailand where I used a local SIM card. Have now changed SIM card back to my UK sim & now I can't receive iMessages - they seem to be sending out okay, but not in. Any suggestions welcome!

Data block

I need help asap, I missed my payment by a few days as I’m in Korea, so o2 cut me off which is fair my bill is now paid it was paid on the 10th July they told me it would take up to 24-48hrs to clear my bar it’s now the 16th I’ve got no service on my...

Puk code

I'm trying to get a puk code but when I sign in it wants to send me a code I cannot get because my phone is locked,any other way of getting my puk code?

Getting my phone reconnected

why is my phone still not connected

Cancel

Hi I was looking at phone contract and was going to check out and paid the £30 upfront but have changed my mind and I’m looking to cancel the payment and phone

Account locked

I am locked out of my account and need access immediately.

Resolved! Network Provider Voicemail

Hello Yesterday I upgraded my voicemail and now I have noticed my voicemail says Network p a provider voicemail . How do I get this off ? thanks

bad wifi

Hi when i am in Sainsburys BN14 9LA Worthing it is impossible to get wifi, so when i log into o2 wifi, they say when you receive the code, input the number, i never get that code in the store, only when i am back in the car in the carpark, then i can...

Was I misled? PAC / Porting my number to O2 from Three

I would like to get your opinions on an issue I have encountered during the recent transfer of my Three Mobile number (Monthly contract) to an O2 PAYG SIM on Tuesday, 5th March. Following the use of a PAC code through O2's transfer form on Tuesday 5t...

Roaming in France

Hi,I rang O2 on Tuesday 16th July to ask to turn the roaming on as I was travelling to France. My iPhone is set to receive roaming but I cannot dial out and cannot receive txts so I can’t sign into my mobile app as O2 wants to send me a txt to prove ...

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