Okay, so my friend Kevin gave me his number. I added it to my contacts. I have texted and called him. Last week he told me he changed his number. I added it to my contacts and then deleted his old one. Why is it that when I go to text him, it sends my text to his old number which is not even listed under his contact entry any longer. This happened to me with my niece also. Is this a known bug or just my weird thing? Thanks.