"Can I help you, sir?" asked the cashier.
Mr S nodded, then began his explanation. "Three days ago, I acquired this TrueEye Magi in your store. You advertised that it could resolve all visual issues, but I can only get it to display sight beyond sight. I would like to exchange this, please."
"Do you have a receipt?"
"Excuse me?"
The cashier sighed. "No exchanges or refunds without a receipt. If you have a problem with that, you'll need to speak with my manager. Can I help the next person in line?"
Mr S was shunted off to the side as he waited for the store manager to arrive.
"Hello, I'm Gobi,the manager on duty. How can I help you?"