Verizon PHONE HELP NEEDED!!!??!?!??!?!?

I lost my phone at my friends house and get it replaced becuase it was under insurance by Asurion. Now, 3-4 months later, I was at my frineds house and happend to find it. Is there anyway i can deactivate the phone i got from asurion and reactivate the lost/stolen one? I tried to activate old hardware on Verizon.net but it said the ESN can not be activated at this time, call customer service. I dont feel like waiting an hour to talk to someone and find out i cant recativate it becuase it was a phone from insurance company. Does anyone know whether it is possible to deactivate the old phone and get rid of the replaced phone?