A company ordered some incorrect parts. After delivery the mistake was noticed and our owner went to the job site to figure out what went wrong. It was determined that our customer made a mistake and we could not cover that cost. Our customers employee was at the job site and said that they needed to get the job done and asked to get the parts shipped ASAP. This was done in person and our owner got the parts ordered in order to get the parts to the customer ASAP. Their company owner was aware of the order as he called to ask for a Thursday delivery to which we explained that Friday was the earliest possible. Since then the customer office manager has proclaimed that the order was not approved by her and therefore she is declining to pay. Are they responsible for that employees order?