To answer your question about return shipping- you cannot force the seller to pay it, but I have heard of people sending invoices to seller for return shipping (via PayPal). It might work. Certainly worth a try
I got impatient after waiting 2 days for a reply on a refund...so I filed a SNAD to Paypal...and she refunded me the money in one hour!!! I checked my credit transaction today and hurray!!! The money is reversed back to me!!!
Can you believe this seller??? I was trying to be polite. Her response to Paypal was..."I had an emergency..blah blah blah"
It clearly states no refund on the return shipping. I don't mind and I don't think I want to escalate it further for the shipping. I lost money on the shipping but I gained a valuable lesson that's priceless!