How to report sellers over inflating prices

[mj_v2.0]

Is there a way to report sellers that are selling items at up to 2 sometimes 3 x the price for example a cat litter tray that’s at the most in store $80 seller is charging $183, and an item called no vac for carpets, $10 in shops seller is advertising $44.95 and the best seller wants $192 for cat litter. How is this allowed?

[wide-world-of-stamps]

Why would anyone pay even $80 for a cat litter tray, let alone almost $200?  It would have to clean & deodorise itself, & also potty train the cat before I'd even consider it!