- Must be a student aged 18 and over. - Offer is not available to existing monthly or annual subscribers until 7 days before existing subscription ends. The promo code generated can only be used on the Santander Cycles App or website. Cycles must be docked within 60 minutes to avoid further charges. Rides longer than 60 minutes on pedal bikes are £1.65 for each additional 60 minutes. E-bikes are an additional £1 per journey within 60 minutes and £3.00 for each additional 60 minutes. To redeem promotion the person redeeming the Promo Code must be aged 18 or over and agree to the User Terms and Conditions, which are available here https://tfl.gov.uk/corporate/terms-and-conditions/santander-cycles. Code is only valid for annual memberships.