Once I received my phone which did arrive as instructed. I inserted the sim and went to contact my new provider 02 to port my old number I couldn't pass security because my contract details were set up very incorrectly. O2 blamed Mobiles.co.uk and mobiles.co.uk blamed O2 so got into this tug of war. Mobiles.co.uk didn't believe the story either claiming me to be a liar which I tried to say let's start a conference call with both customer services which they refused. So now in the process of a refund which could be a battle in itself. Very poor service which I think could have been dealt with a lot more efficiently.