If a customer complained that you gave them incorrect change, what would you do?

"In my current position I have been trained to avoid this situation entirely by leaving the cash visible (out of the till and on the counter close to me) until I have provided the customer with their change. I will also confirm with the customer the bill type they have given me. For instance; if they hand me a 20 bill, I will say out loud 'from twenty?'. They will then say yes - confirming that we are both on the same page. These methods help me to avoid customer issues surrounding cash discrepancies."

"I have not experienced an event like this; however, I do know that in cash based scenarios it is always best to leave the original bill outside of the till, visible to the customer, until the transaction is complete. This method also prevents employees from being scammed by fake customers demanding change for their 50 bill when, in fact, it was originally a 20."