It seems you have a defective plane, call hobbyzone support, give them a full explanation of what happened, trying to do the first charge, partial charging on car.... don't mention the crash, I really don't believe it has nothing to do with non working plane, they are made to handle some level of abuse, and if there is no physical evidence of damage, it should be good.
Reading your second email gives the impression of faulty plane.
They will send you a replacement body.
Don't loose much time, and don't waste more money... be patient.