Images displaying third-party ownership or branding not deleted - McMillan & Wife

According to the image guide (https://help.imdb.com/article/contribution/images-videos/image-guidelines/G27LPBQZA7EAZGJW?ref_=helpms_helpart_inline#) "Images displaying third-party ownership or branding, such as watermarks." are not allowed.* For that reason, I tried, on two occasions, to delete these two photos of McMillan & Wife: https://www.imdb.com/title/tt0066685/mediaviewer/rm850828801/ and https://www.imdb.com/title/tt0066685/mediaviewer/rm835886849/, but my contributions were declined. Was this in error or does IMDb have a different idea of third-party ownership and/or branding than I do? These are the submission numbers: #250817-172644-934502 #250817-172653-366502 #250826-230831-777402 #250826-230841-858002 *all pictures had a watermark from tv channel Cozi, which started in 2013, while McMillan & Wife is a 1970's series, a fact I pointed out in all contributions. Also, since these kind of things happen a great lot (see a list at https://community-imdb.sprinklr.com/conversations/search?q=Images%20displaying%20third-party%20ownership%20or%20branding%20not%20deleted), I'd like to know WHY these four submissions weren't approved. And of course, can a message once again be send to the staffers who deal with these kind of contributions?