I got 100% refund from seller via PayPal for items, advertised a 23 tooth sprockets, but the picture showed a 18 tooth sprocket (who would buy 18 tooth sprockets that come as throw-away items, least material condition, with new wheels). I did not axe questions as volume sellers often use a one-size fits all picture. Applied that refund, return of junk explicitly not required, to tires from same big-time selling outfit, who I may occasionally buy from.
As a customer, I am often right. There may be a saying, "the customer is often right, long before the price is forgotten".
I got a 100% refund from an apparent smaller-time seller via PayPal for a wrong 3-speed wheel shipped to me, (for which I did axe questions via eBay messaging), instead of the cheaper one sans shifter parts, which I actually paid for (but also mentioned in my message), then the seller sent me the right item and explicitly allowed me to keep the expensive item. [Someday I may find a matching front wheel].
I believe that part of the problem, may be toy computer platforms, that hide instead of highlight the seller's explicit contract terms and conditions, (i.e., where does it say "artifacts" - I don't see it on the stupid phone display screen). Some sellers may pray on such non-falcon millennials, and forget to mention that the $1000 bike is actually a 4-5" model.
I have fond memories of the folks I've sent funds via PayPal friends and family.