General rule for reusing promo/voucher codes:
1. Promo code is not yet redeemed or used.
2. Promo code is not yet expired and/or has reach its usage limit.
3. Reactivation of promo code due to cancelled order is only allowed 7 days from the cancellation date.
Please contact our Customer Support for further assistance, don’t forget to include the order number, voucher code & username.