This mob is not legitimate. They will offer to unlock your phone for a modest sum and it will be completed within 1-48 hours. After receiving that money they come back and say that your unlock is ready and you will receive it after paying much more money. After that they tell you that they are working on it. Nothing happens. Every progress enquiry says that your unlock is 50% completed. If you complain enough they will eventually give you an "Unlock Code". This is supposed to be entered when you restart your phone but of course nothing happens and that is when you know that you have been scammed.