Help me please I bought a Nokia lumia 800 at Belgium and it request for a PAC Code before I can use the phone
It is requesting for a PAC code so that you can transfer your number. A PAC code normally permits users to transfer their existing number from one network provider to another network provider. You will not have to give everybody a new number. Read more on http://cow.neondragon.net/index.php/pac-codes-how-to-transfer-your-mobile-number-when-switching-networks.