LindaP, merrydish, Schientist - Thank youfor your wise advice!!!
lavendergirl & babygirlbling - Thanks so much for your well wishes, too!
NEW UPDATE
Today is Day 7 of the open dispute, and I received a new message from Ebay!

They wrote:
Thank you for reaching out to us regarding the issue with your item. We
are providing you with a pre-paid label to return the item directly to
the seller.
The label should be used within the next week. Click on the link below
to print the label from home. A tracking number and detailed
instructions for drop off and pick-up of your item are also included
with the label. For your convenience, this label allows you to use UPS
or USPS (United States Postal Service) to ship your package.
So I'm going to now take lots of pics and then I'll ship it out. I was thinking of doing it by UPS
with signature confirmation, tracking, full insurance. Whaddya think?
I also called Ebay today to follow up and ask about how this is all going to work. They said that I should send the item back to the seller. Then call Ebay once the item arrives to the seller (I will know via the tracking number). Then Ebay will give the seller 3 days to give me a FULL refund. If she doesn't after 3 days, then Ebay will provide me with a FULL refund,"on behalf of the seller"! And they will charge the seller that refund amount. (I suppose it will show on her monthly Ebay bill??? )
I know that I did not get my money back yet, but I'm so excited!
As always, I will keep everyone posted!