The short answer is no!
When using a voucher or promo code on the FREE NOW app you can add as many as you wish to your account. However, only one voucher/promo code can be used per trip and unfortunately, vouchers and/or special promotions cannot be combined.
We always aim to deliver the best fares where possible when booking through the FREE NOW app so make sure to keep an eye out for any new vouchers/promo codes we may currently be offering.