Assume that during Lilly’s and Lester’s last visit to the retail store everything was as described in the case, except the final bill was not ready and Mr. Bill Hudson had lost some of the paperwork documenting the price of the ring and diamonds. After a 45-minute wait, Lilly and Lester had figured out a final bill. What is the impact of this “billing service upset” at the end of the customer’s buying experience? Is billing a primary or peripheral process?