I received a call last year from a vendor for my retail site indicating that I was using copyrighted product images and to remove them.
I explained that I have permission to use the images and waited two months to get it.
The lady didn’t believe me until I forwarded her the 2004 email from a manager giving me specific permission. In the end I had to take my own photos but since I give them decent business they gave me a couple of months to get the task done. It was about 150 pictures in all.