Capital one auto finance Has my lively hood in limbo NASHVILLE Nationwide

 I was financed by capital one 2yrs. ago I've never made a late payment & overly bought insurance (great customer.) I total my vehicle & now my job my home & life is on the line waiting for capital one to process a check from my insurance. Oh & then get started on gap then a recourse letter. I've found a replacement that I can't get financed because on the books I appear upside down (negative equity) when I'm actually not...... They're claiming to not have received the check from my insurance which was mailed out 8 days ago (to their p.o. box) & can't do anything to help me. They refused to send me the letter of Guarantee (until I fussed) or any documents for up to five days. I truly thought we had a rapport & hoped capital one would fund a new loan for me but would rather go elsewhere (even if it costs more) as capital one has been difficult throughout this procedure.