Could members use multiple vouchers to offset their purchases?
We would suggest to allow only ONE voucher for ONE transaction. Members have the choice to decide which voucher amount to be used in their purchase on a particular transaction.
They may accumulate more points to entitle them to redeem for a higher value voucher if any and this will encourage members to re-visit your store(s) the next time for their unused point on redemption for vouchers. Usually customers will buy more than what's on their vouchers, hence, generate more sales.
Businesses with repeat customers will result in a higher valuation.
*Business operates differently, please check with your Operations Team for clarification.