Amazon is not happy with Saks

Amazon is putting up a fight over Saks Global's bankruptcy financing plan.

Scott Olson/Getty Images; Matthias Balk/picture alliance via Getty Images

• Amazon is pushing back against Saks Global's bankruptcy financing plan.
• Saks Global filed for Chapter 11 bankruptcy protection this week.
• Amazon warned it may seek "more drastic measures" if Saks doesn't "resolve" its concerns.

Amazon's business partnership with luxury retailer Saks Global has hit a sour note.