Hi, Rowena!
Yes, discounts are becoming quite common in business these days. While searching for freelance gigs, I'm finding that more clients are drastically reducing their pay rates for models and are instead combining lower pay rates with retouched photos or copies of images, whereas normally clients used to offer models only one or the other.
It's sad, too, because I'm noticing that if clients have a budget to work with, they'll offer to pay everyone from the photographer to the stylists and makeup artists but not the models. Unfortunately, many clients see us as being on the totem pole of the process so I'm seeing more and more non paying gigs. (Sigh) I understand why it's becoming more difficult to squeeze pay for models into the budget but at the same time, it doesn't help me out at all.