The voucher can only be used for your UK train ticket purchases on the TrainPal App. 2. The voucher is only valid on 00:00:00 -23:59:59 23 May 2025 (BST). 3. Payment must be in Pound Sterling or Euro. 4. For new TrainPal customers only. 5. Each user account can only use a promo code once, and promo codes cannot be used in conjunction with any other discount. 6. Each promo code can only be used once per device, email address, or payment account.