Unlock samsung phone for move to new network

[Mj4]

My phone is locked I already got pack code and provide to new network but it is still locked and unable to use phone

[Enlli]

Contact O2 by ringing or using social media and request an unlock code.

[MI5 · Accepted solution]

@Mj4 

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

[auntysassy]

O2 have verbally given me one PUK code which didn't work and when I went onto the website to get one, a completely different number came up!  That one doesn't work either!  Any idea what to do next?  I am desperate to leave O2 - they delayed giving me the PUK so I rolled into the next charging period (I'm cancelling my DD once the last charging period has been paid).  The auto chat is rubbish - so is their customer service. 

My new sim is activated by the new network  - it's O2 who are causing problems! 

Any advice would be gratefully received. 

[MI5]

@auntysassy 

You don't need a PUK to unlock your phone.

Follow the guide posted above.