Net Promoter® NPS®, NPS Prism®, and the NPS-related emoticons are registered trademarks of Bain & Company, Inc., Satmetrix Systems, Inc., and Fred Reichheld. Net Promoter Score™ and Net Promoter System™ are service marks of Bain & Company, Inc., and Fred Reichheld.
I am now having the car inspected by another mechanic to determine what went wrong. I am very disappointed and hurt with this experience and would caution others to be careful when choosing this business.