Not sure what to do

Auctioned 8 boxes of assorted tins at beginning of month

starting @ .99c. (free pickup only) one person put a bid on each and won all 8

Didn't hear anything from them until it went to unpaid dispute.

The person then contacted me and offered to pay now and collect the boxes 9 weeks later (mid Novembert) when they were back in sydney.

I informed them that I had very little spare space and asked if they knew someone in Sydney who could collect the 8 boxes on their behalf, no response.

This evening,  noticed that I was eligable for listing credits on the items so clicked it thinking at least I will recover something.

Now I notice the person has left me negative feedback, any advice before I respond?