Drive-through Mayhem

In a rush, I thought that a drive through would be the most viable option for me to get something to eat. Of course, I was proved wrong. I waited in the queue only to find that the systems in the drive through doesn't accept vouchers.

There was no way out of the circle, I had to wait for all the other cars infront of me to get their orders. (I respect that they had to, it's not their fault that I made the mistake of thinking a system, from a franchise this huge, would be problematic.)

Kindly advise customers, before they go through that, about the system.

Besides that point, the staff on duty were rude and abrupt. I may have been in a better mood if they didn't treat me like trash. What happened to the customer service they've mentioned on their cv? I guess it was just placed there to get the job.