Your check was already cashed (hammered). Just try calling for a refund.
Remember, only a sucker buys meat, chicken or fish by the piece. Always know the cost per pound, not the cost per piece.
What USDA grade was the meat? The website and salesperson (contractor) doesn't mention that. There's a reason why. It's nothing to brag about. The USDA has 9 grades for meat. The top 3 are prime, choice and select. What you're buying is below that, sometimes WAY below that.
USDA inspected is NOT the same as a USDA grade. Most dog food is USDA inspected.
Why not just go to the neighborhood meat market or supermarket? You can select your cut fresh and I guarantee you the butcher won't be embarassed to tell you the actual weight or USDA grade. You won't need to buy $200 worth either. If there's a problem refunds are not a problem.
Buying meat off a truck is always a losing proposition. Protect your wallet and your family.