Did you mean Samsung C3300k champ ? I hope you can unlocked your phone right now . Because, its nearly 4 years gone . I wish to give some idea to future questionnaire like you . Nowadays, many of the online vendors provides unlock code to unlock Samsung and other kind of mobile models at cheap rate . Like carrier, they too provide reliable unlock codes .

Source : http://www.classicunlocking.com/samsung-c3300k-champ/rs17wp9/