The same website is using more than one of my images, should I submit a case for each use?

No. Using the case submission form you are able to submit all of the matches Pixsy finds on the same domain, as part of a single case or takedown.

Pixsy calls all of the images found on one domain a "match cluster" which means the images are grouped for submission. As you move through the case submission process you can decide which images should be included in the case submission and you will be asked to provide information about each. 

If you need to add other images that were found on the same domain to an open case you should reply to the email Pixsy sends you that contains the case reference number. This keeps all information about the case in one place and passes any additional information or images directly to your case manager.