Welcome to the community, sorry you are having problems with your '13 Edge! At the very least, the calipers need to cleaned and slide pins greased, at the most, they should be replaced.
Either way, the dealer should fix under warranty. 15K is terrible life for a brake pad, esp. OEM, if this is not exclusively a dragstrip-driven vehicle, that is.
As akirby said, find a new dealer. If you still have no luck, there is a Ford Customer Service Rep on here to help you escalate & resolve the issue.