Selling

[daspotter]

What do you do if anything about another seller using you picture & description?

[krazzykats]

Nothing.  You gave consent to eBay to allow others to use them.

[ebooksdiva]

Nothing since eBay states 

What should I do if my image, video or text is being used by another seller?

When you create listings you give eBay and its customers permission, through our User Agreement, to use your images, videos and product details. Your content may be added to the eBay product catalog, and may be used by other sellers in their eBay listings.

Images, videos and text policy 

[zip-a-deedoodah]

What section of the UA did you find that language, I can't find anything that says sellers grant other uses a license to use their images.

[caldreamer]

 This is allowed on EBAY.   EBAY encourages "other sellers" to click on SELL SIMILAR and use your photos and description.   

[powell-memorabilia · Accepted solution]

https://www.ebay.com/help/policies/listing-policies/images-text-policy?id=4240#:~:text=What%20Should...?

[zip-a-deedoodah]

Thanks.   Interesting, seems to contradict the eBay User Agreement.

[onefootflippers]

You do nothing.

Any time spent on this issue is a black hole that earns you zero revenue. 

Even if you could do something about it that would not remove the competition it would just make them change the listing. You are no better off than you were before, possibly worse since they might then make their listing better or cheaper than yours.

Anytime spent looking for, worrying about or talking about this issue is good work time spent that earns you ZERO REVENUE. 

[ebooksdiva]

Its in the link of the policy I posted.