Do you have another card?
I'm sorry this card is not working.
What is your credit rating? Wait, that's none of my business.
I'll ask you again, Do you have another card? Maybe it’s our machine. Sometimes it just doesn't like some cards! Give me just a minute...
...After further investigation, it appears the problem was on our end. I apologize for any inconvenience we might have caused. Please insert your card again.
It doesn't matter how old you are or how young you are, it just requires a card of some kind. You will need one to access the cache. We all know it's never too soon to start teaching our children how to use cards wisely.
If you are granted access, remember to place your stamp or name on our ledger/logbook and collect verification that your transaction has been approved.
This cache should be easy to locate. Be cautious as you make your way to the cache-those are some big trucks! Please close the container up so that subsequent finders can enjoy the same experience.