No, each voucher can only be used once. When a voucher is redeemed for a product or service, it is marked as used and cannot be applied again for future transactions. This one-time-use policy ensures that each voucher is allocated relatively and used according to its intended purpose. It provides a precise and controlled mechanism for distributing and utilising resources within the system. The unique code associated with each voucher facilitates tracking and prevents duplication or unauthorised reuse, maintaining the integrity of the voucher system and ensuring that benefits are distributed as planned.