My Zipster card is not working, what should I do? Zipster April 03, 2019 04:20 If the card is found to be disabled, please contact us via Zipster app feedback channel or email us at firstname.lastname@example.org. Related articles Can I top up credit into Zipster Card? What is Zipster Card? Am I entitled to Zipster card replacement? What happens if I lose my Zipster card? Public Transport Flow Comments 0 comments Please sign in to leave a comment.