sarejane

"Has anyone noticed an increase in non payments recently?"

Buyer demographics play a huge part in whether you have a lot of non payers or not.

In your category it gets worse this time of year with school / uni students home.

As already advised, you can cancel the sale using the "non payer" reason to get your fees back.

The buyer will get a strike but from experience, strikes and feedback scores mean very little to the age group. 

They'll  just open a new ID and do it all again.

One way to stop this is if you list as a Buy It Now with Immediate Payment required so an item's not sold until it's paid for.