You can enter your fromAtoB voucher code in the last step before payment.
DB Cancellation voucher
Since August 1, 2018, Deutsche Bahn is issuing cancellation vouchers. Unfortunately, those cannot be redeemed on our site. However, you can redeem them via bahn.de, DB ticket machines, in DB travel centres or DB agencies.
In the "Traveller" section directly next to search mask you can specify whether you own a discount card. We are working on integrating additional discount cards into our system in the future.
Under "Personal details" you can enter your DB BahnCard or bahn.bonus Card number to collect bahn.bonus points.
Please note: If you are a BahnCard holder and would like to receive a discount, you must enter your BahnCard in your user profile.
We are also working on offering you more bonus programs in the future.