Is it ok to use images from your affiliated merchant's site?
I'm not talking about images you get from banners when you insert an HTML code into your Website, but about those you can see on the actual site of a merchant you're affiliated with.
For example - Amazon. If I'm already an affiliate of Amazon, can I just search there for a product I'm promoting and use one of the images I can see in stores, or should I only use what I get from affiliate links provided to me by Amazon?
My problem is those images I get from links are very general and sometimes really small, whereas stores have several large images of a product made from different angles.
I recently decided to start a review site and I really need those images, but for some of the products I just can't find free-to-use pictures - even on Google.
Would appreciate any help.