Unlocking my I phone

[Anonymous]

I am trying to unlock my I Phone and i have filled in all the fields on the form provided. My phone is also registered with O2 but i keep getting this e mail back 

Thank you for your iPhone unlatching request for IMEI **************.
The mobile number that you provided is ***********.

I'm sorry, we have not been able to unlatch your iPhone at this time.
The reason given is:

Sorry, you have not passed our security checks with the information that
you have provided. Kindly check that you have provided the correct
information.

Thank you,

O2 Customer Service

Can anybody help 

[jonsie]

Have you used the simcard in the iphone for calls and texts. Last time I unlocked an iphone the security question related to the numbers most called/texted.