Because you asked for it
Redundancy (n.): The art of repeating oneself, often with the intention of being heard.
Example: "I'm telling you this three times, so you'll get it."
Also see: Redundancy Techniques and Repeating Yourself in Every Sentence.
Or, as the ancient Greeks said: "You know, I already told you, didn't I tell you?"
See also: Prolixity and Periphrastic Phrases.