This typically happens on subscription-included meal selections: for a meal marked as "included" in your plan, the price charged is only the meal's surcharge/add-on price (which is $0 unless the store configured one) — not its regular menu price. If a checkout unexpectedly shows $0 or a very low total for meals you'd expect to pay full price for, it usually means those meals were included in your plan's allowance rather than purchased separately — check your subscription's included meal count if this looks wrong.