This situation is up to the discretion of the business. If most of their order is utilizing reusable containers, then we suggest that they be given the discount. If the reusable is only a small part of a much larger order including disposables, then we suggest that they be charged for the disposables. If the order seems somewhat equal, then we suggest that the discount and the charge be applied. Discount and fee implementation may vary depending on businesses point of sale system.