But there is something wrong with your logic. Whether the exchange voucher is valid or not has nothing to do with whether the money you received is used up.
In other words, whether you have used up the expenses paid by the company or not, its employees can still eat by ticket.
If the restaurant is worried that a large number of unused coupons will affect the restaurant's income, then adopt the following methods:
1, which increases the price of convertible dishes and reduces the actual value of exchange vouchers in disguise.
2. Set the validity period, and the expired exchange voucher will be invalid.
But the above method is not correct, so it is not recommended for you to use it. After all, doing business is based on honesty ~