After reading several reviews from unhappy customers, I decided to put things straight for all those ignorant reviewers who know nothing about mobile phone service or unlocking. You cannot blame a company's service which provides you with the UNIQUE unlocking code for your phone because you just woke up one day and decided to be a phone technician, decided to help a friend and took his tweaked, tampered, jail-broken, rooted, double rooted, etc phone and decided to pay for an online unlock code which didn't work cos that wasn't the phone's problem to begin with! I am a hardware and software mobile technician for 15+ years and cellunlocker.net is one of the best out there! IF YOU KNOW NOTHING ABOUT PHONES, DO NOT PRETEND TO BE A TECHNICIAN! It takes years of experience and work to know when you can unlock a phone and if it is indeed possible, I rest my case!