I just had another Paypal e-cheque bounce from a lady with 100% positive feedback - it seems to be the buyers who have to be reminded to pay.  Why can't we block e-cheques?

Every other person/company can, but we cannot block if it's a payment to eBay.

Isn't a bouncing cheque fraud - whether it's a normal cheque or an e-cheque?  Or is it more than one bounce that is fraud?

It looks like I'll might have to issue 2 unpaid strikes out of 3 sales in the last week.