I had a bad eBay experience yesterday on something else, so I will be more careful next time.
I bought a TV, returned, so far so good. However, the cancel of Squaretrade warranty that I bought didn't go anywhere. No communication via eBay messages at all. I then saw an email message asking me to login to their site and to cancel.
I didn't like that and messaged them again. No response.
EBay refused to do anything, even when I said seller communicated outside eBay is against eBay recommended practice and in their listing description says I may be able to use 30 days money back guaranty.
Ebay said the listing does not have eBay 30 day money back guaranty and they can't do anything about it.
I ended up created an account at Squaretrade to cancel and got my refund.
Not totally bad, but I can see someone can screw me if they don't honor what they say at all and eBay refuse to help if eBay 30 days money back is not an option.