All the vouchers that you will find here at Couponobox or from any of its partner website or affiliates is valid only for a limited period. It has a value too.
Every voucher works in a specific way and has some conditions attached to it. You can only use a voucher to buy a specific product or service.
You can just use a voucher for a single transaction and it only works for that time.
Vouchers cannot be redeemed for cash or you cannot exchange it. Stacking vouchers with other offers is also not possible.
If your shopping exceeds the value of the voucher, you need to pay for the remaining amount.
The codes should not be posted at public forums or forwarded to anybody.