Hi,they may take more time/month to E-Mail the NUC code.Better you can get the Network Unlock Code for your HTC Wildfire from low cost online site like Unlock-Zone.com here you need to specify the IMEI number of your phone and Country,Network provider to which it is locked.Then they deliver the code to you through E-mail.Using that code you can unlock your phone easily.After unlocking from Vodafone,you can use freely any GSM network Sim card.This is the easy,safe,fast,cheap and permanent unlocking method.