How do I update my details? 12 February 2021 15:51 Updated You can update your postal address, mobile number, email or your payment cards via the Zip customer portal <<here>>. Related articles I'm already a customer of Zip, why do I need to sign up again? I'm having trouble logging in to my account How do I close my account? How do I make a payment before the due date? I'm an existing customer of Zip but now I get a message saying I'm unable to use Zip to shop, why is this happening?