Looking for UM888 4G 3year standby GPS tracker

Buy offer Details

They are producing and selling routers. I tested their product, it works fine and doesn’t need to set up APN. They think all their customer will use data in bulk, like 80G per month and request :
1.Our company’s registration(to make sure our certification)
2.They wants the commission starts at 20% because they need to use part of the money to advertise us
Please advise.