im interested in this as well... i had a 400 dollar item get delivered a few days after a forced refund. of course the buyer wont even reply.
i have 2 inr cases right now. same as you i ship next business.
ive refunded over a 1000 dollars in the last 2 months.
the packages go dark for 2 weeks or more and then pop back up.
since early november ive had 24 items out of about 650 that took over 2 weeks w/ usps.
2 weeks ago i started sending all boxes ups even though its kind of a hassle in a rural area.
i dont think ebay will do anything about this though once its refunded i doubt they can pull funds from a buyers account like they can a sellers account.
one thing you can try once a buyer starts an inr case is do a package intercept but that doesnt work very reliably.
another thing is when doing a package search you can choose to have it returned to sender but that almost never works in my experience.
good luck....
