stock photos with layers, not flattened images

I tried to get adobe support to answer this question, but to no avail - was put on hold for 2 hours before I gave up. I was trying to find out if I can get the following images in PSD layered files instead of one flattened image that I can't edit (or can't easisly edit). I need to change the backgrounds to my client's corporate colours. I know they have these images separated as I see different backgrounds for the same image on the adobe site. But like I say, I gave up on chat support as no-one got back to me. So I'm asking the community for help. Otherwise, to hell with it - I'll go somewhere else. The images AdobeStock_267279355, AdobeStock_62335499, AdobeStock_40254104 are on the adobe site with different backgrounds yet the downloads are all flattened images. Why can't they be layers so I can edit? Makes their 'stock' site a little bit useless if ask me. Anyone else know what I'm talking about? Please help