I have listed an item for $10 to which someone has bid this so I am selling.  I have 5 days to go until the end of the auction and another buyer has offered me $85.  However, I can't seem to go and add the option of "Make an Offer".

Is there anyone who knows if I can do this and accept the $85.00 and not wait until the auction has ended 

or

Do I have to just wait until the auction has ended and hope that I get to that $85.00 at the end of the auciton?