I need to get copies of my last 4 cell phone bills. How do I do this?

Contact your wireless provider and ask for copies.

With verizon wireless if you go to their website and register to access your account online (by creating a password and screen name and entering some account info) you can go back over a year to look at your old bills and statements online.. you can even print them out and see every call you made and received.. I don't know about the other providers though.. I hope this helps you..