How can I add more currency to my Indigo Travelcard?
Whether you’re in the UK or abroad, topping up your Indigo Travelcard is simple. Login to your account at www.indigotravelcard.com, click the card you want to top up in My Account and follow the top up instructions. Or send an SMS top up instruction (see the SMS Services within My Account). The maximum amount you can have on your primary card at any one time is €3,800/$6,000 and €1,850/$2,000 for each additional card.