Typically, such advertisements show the advertiser delivering unlikely levels of service. I find it funnier to have the customer expecting undeliverable levels of service.
Template Extreme Customer Service
The cast is a Demanding Customer, Helpful Advertiser and Voice-over
It works like this:
1: Demanding Customer identifies themselves as a customer who has enjoyed excellent service previously. They ask if the Helpful Advertiser can assist again.
2: Helpful Advertiser agrees.
3: Demanding Customer asks for help with a task completely unrelated to the business
4: Advertisers reluctantly agrees.
5: Voice over outlines advertiser's service standards as the customer's request becomes more and more extreme.
Here’s an example: King Toyota