Samsung phone. Hi i am a user of the samsung SCH-r500. At first everything was fine but now in my

Question

Hi i am a user of the samsung SCH-r500. At first everything was fine but now in my contacts list there is like five of each of contact. The first number is their number and the next four are someone elses. Its really weird. Another problem that i have been having is that when i go to text, it says that 75% of memory is full and that i need to delete all messages. I delete them all and try again but it still says the same thing. This problem has been getting progressively worse and finally its at 100% full memory and now i cant receive of send texts at all. If you can help that would be great. Thank you for your time.