Hello, I am new to eBay discussions, and probably wont use it again since I have an easy time using the site with little to no problems what so ever.

My question, or rather situation, is concerning a seller who is using photographs I have taken.

There's a seller on eBay, who hired me to take some photographs of their products so that they could then use them on eBay to sell their items.  I have had nothing but trouble from the seller and it has got to the point now where they've not paid me for the photographs and are ignoring my calls.  When I go round to the house, I get told "he's not in".  I have warned him multiple times that I would sell the stock he has left with me, and I have started to do that.  But it doesn't cover the remaining balance.  So my actual question/wondering is...

Can I report someone for copyright infringement for using my photographs to display their products?  Or to put it more bluntly, can I stop them using them if I report it to eBay?

No written agreement is in place other than that they would pay me such an amount on a weekly basis.  I have this in texts and emails.

I am not much of an explainer, so I hope you can understand my jibber-jabber!

Cheers.