some advice please

I currently have a dress on auction, and the highest bidder has a low feedback score (no issue really as everyone has to start somewhere) but out of curiousity I clicked on their feedback - they are both false positives for non payment.  With all the new changes to ebay selling Im gettting a bad feeling.

 

should I continue the auction and see what happens?

should I cancel their bids and block them ?

 

Im not particulary keen on emailing them as according to the feedback they kept saying they would pay but never did - I would rather avoid the hassle of a unpaid item dispute.

 

Any advice would be helpful.

 

thanks