Same here.  I sold a motorcycle helmet to a buyer with 3 feedbacks on January 4th of this year and continued to communicate with the buyer throughout the remainder of the month even realting to them we had had extremely bad weather here in west Texas right after I had mailed the item out. 

As we communicated through the month, the customer seemed to become increasingly impatien and, the fact that USPS tracking continued to show the item had been only been picked up, I refunded the buyer's full PayPal payment on January 30th.  On Feb 1st USPS tracking showed the package was dleivered to the buyer.  Since I had cancelled the transaction at eBay in order to get my fees back, I seem to now have no alternative but to contact the buyer and hope they will resubmit their payment.

I've have had much success selling to low feedback bidders in the past but it seems all the buyer and seller scams of late have everyone walking on eggshells.