It took them 4 days to respond. I replied with clear details of the tools required and how to solve the problem at one location. The core content of my response was:

“I am happy to talk about my solution further, and I’m even willing to attempt to implement it at some of the most concerning locations myself. I have estimated that it costs between $5 to $10 per bin in each location. The tools required are a wire rope crimping tool kit, a stainless steel hose clamp kit, and a pack of small carabiner clip hooks for a total of around $100 capable of doing 20+ bins. The materials are all made of steel, very durable, and do not produce any further plastic pollution.”

Basically you just use the existing signage and posts in the area, put a steel hose clamp around it which is like an extremely tight metal band, create a loop with the steel wire rope, then use that to loop through around the bin, created two small loops on the ends of the wire, and then carabiner to connect them for easy detach and reattach.