Article and rant detailing my extremely negative experience with business account opening and network gear order on Amazon, covering difficulty in getting customer support, difficulty setting up business account, difficulty reporting potential security issue, shipment of second-hand open-box devices instead of new items, Amazon's refusal to send replacements, problems with the process of used items collection and associated refund, barrage of auto-generated emails, zero customer care, my subsequent decision to shop local, other details, and more
Consumer rights in the EU are pretty strong. They include two-week free returns, no questions asked, on things purchased online/remote.
These rights do not extend to businesses, though. Sounds like Amazon is not interested in being helpful unless legislation is twisting their arm.