The Classic Track Got Derailed Pretty Quickly

I work at a go-kart track. I just started my shift and a lady is my first customer. I always ask customers if they plan on doing more than one activity since they can get package deals and save money.

Customer: “I would like two for the classic track.”

Me: “Okay, is that all you plan on doing?”

Customer: “I don’t know, why?”

Me: “We have multiple ride package deals to save money that are displayed here.”

I point to the giant flat-screen above me and the sign printed on the counter. The customer was nice but suddenly becomes furious.

Customer: “Why wasn’t I told this before?! Can I get the discount now?”

Me: “I’m sorry, we can’t do that; the package can’t apply to previous purchases. I’m sorry if someone else didn’t mention them, but they displayed.”

Customer: “Fine! Whatever, you guys are f****** terrible salespeople.”

I give her the two tickets and have her sign for her card payment. There is usually always a pen on the counter. 

Customer: “Um, I need a pen to sign for this! You must be their f****** star employee here! I bet you get employee of the month all the d*** time!”

Me: “Yes, I do! Thank you for appreciating my hard work!”

The customer scoffs and leaves. 

Coworker: “What was up with her? She was so nice when I helped her.”

Me: “…”