This depends on the type of voucher.

Promotional vouchers (e.g., Home & Living vouchers) that are advertised in our online shop can usually be redeemed multiple times, even after a return.

Personalized vouchers, can only be used once and are not advertised in our shop. Be sure to check the terms of your personalized voucher. If your return causes the conditions (such as minimum purchase value) to no longer be met, the voucher may no longer apply to your order.