static void Main(string[] args) { Phonebook ContactList = new Phonebook(new Contact("Martin")); ContactList.AddNewContact("Test", "+59891611429", "3645352517"); List <Contact> FoundContacts = ContactList.Search(new string [] { "Test" }); Console.WriteLine(FoundContacts[0].Name + " " + FoundContacts[0].TwitterID); IMessageChannel TwitterChannel = new TwitterChannel(); IMessageChannel WppChannel = new WppChannel(); ContactList.Send(FoundContacts[0], "BLABLA", TwitterChannel); ContactList.Send(FoundContacts[0], "Hey there! I'm using WhatsAppUCU", WppChannel); }