I bought that can of something-wrong Addiction from Pets Gourmet, and when I informed them of the suspected mold they offered to do an exchange, even while they haven’t yet heard back from the supplier or manufacturer. Great service!
Update: Pets Gourmet exchanged the can with us; the new can I opened immediately. There were some fatty deposits very similar to the one in the previous can but less and not green. Addiction still has not replied Pets Gourmet on the issue. There was only this strange green blobs on the venison flavour, not in the salmon one we bought as well.