This was taken from Kathleen:

Question:

How do I retrieve text and picture messages after I have deleted them from my wireless phone?

Answer:

At this time, there is not way to retrieve a text, picture, or video message without a court ordered subpoena.  If you do have this document, please contact Verizon Wireless with your request at:

http://www.verizonwireless.com/b2c/contact/index.jsp

 

 

 

 

If you remember, you could just ask the person to send you the message again that they sent before. If you sent out a message that you deleted by mistake,ask the person to forward you the message back to you.