JuliaC, I understand your concern regarding your daughters phone. It is just a coincidence with her moving to Chicago and the battery troubles. We certainly can troubleshoot the issue with her directly as I can imagine it will be hard with you communicating in the middle of it all. Please have her contact us whenever she can. To learn how please visit http://vz.to/1HI8BiJ
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I believe that you can try to dial *228 since that is a 3G phone. That will update the PRL or Personal Roaming Locator and that should help. Her phone will use the closest Verizon tower, as the origin of service, or address she was at when service began won't affect which tower she uses.