To save struggles of the phone calls with half hearted staff from vodafone and samsung, they didnt help with unlocking my phone. As my new second hand phone needed an mck unfreeze code, I got directed back and forth with Vodafone and samsung, so i eventually gave up with the companies. Came across simply unlocked and was sceptical at first, as ive heard genuinely bad reviews with every online phone unlocking company being labelled as "scams". However, simply unlocked made it easy, simple to unlock my phone with easy website navigation, and are fully legit with the codes they get for your phone, as they labell they collaborate with big companies and go directly to manufacturers (like samsung, iphone, etc) to get mck unfreeze codes. Currently writing this review on my new unlocked phone and couldn't be any happier. Thanks!!