Ecoco is such a rip-off!

Three months ago, I joined Ecoco as a member to earn points by depositing plastic bottles and aluminum cans, hoping to exchange them for PX Mart discount coupons. But starting from July, the bottle collection speed has become extremely slow. The machines are always full, and I can't even deposit my bottles. They can't even find drivers to collect the bottles, yet they're advertising on the news. This is such a rip-off!