This is my 4th revoulution..same problems every time

[little-stine]

This is my 4th phone (refurbished) and I keep having the same issues every time. About 3-5 days after activating the phone, I get dropped calls, people sound like they're under water, black screen, freezes up, shuts down..and many many more, I've been dealing with "tech" support only to have ANOTHER revolution sent to me. I'm wondering if anyone else has been having the same or similar problem? Any suggestions on how to handle this and possibly getting different model phone..help because I'm ready to throw it across the room. it's very frustrating and I'm fed up with the phone and Verizon it's self. any suggestions would be much appreciated. Thank You