Iphone locked to O2 but bought from apple

[Greggus]

Ok so my partner recently upgraded from her 6s and we sold her phone only to have to refund it as it was locked to O2 yet I purchased it new from Apple unlocked.

can anyone advise why its now locked and how I can get it back to being unlocked, its been fully factory reset but no change and being a tight wad id prefere not to have to pay to unlock it.

All help would be appreciated

[jonsie]

Sometimes phones bought from Apple locked to the first sim inserted

How to unlock here

Guide: Unlocking an O2 phone to use a different SIM card 

[Greggus]

Thanks just submitted to O2 so will have to see how that goes

[jonsie]

Good luck @Greggus 

[Greggus]

The IMEI -  has not been used on our network with the MPN provided, so it will not be possible to unlatch it.

any idea?

[Bambino]

@Greggus See if Apple support can help: https://support.apple.com/en-gb

[jonsie]

You would have to get a P&G sim and use it for a few days

Then follow the unlock process

Guide: Unlocking an O2 phone to use a different SIM card 

[gmarkj]

Or if you have a pay monthly account use the 6s for a few days and then request the unlock