It’s all a big scam over here, they charge you to manually unload the truck, if you object and unload it yourself, they still charge for the hire of a pallet truck, if a pallet is over hight and needs splitting, you do it by hand or they charge the fee then use a clamp truck to split it.
My company will pay us to unload upto $100 but after driving for long periods I’d rather sleep, besides which if they will pay a lumper upto $500 to do it they should pay us that amount.