I've changed my business address, how can I update my details registered with Duffel? Travel Services 01 November 2021 15:28 Updated Please contact us by email, help@duffel.com. Related articles How does Duffel help me provide a great post-booking experience? What countries is Duffel Links supported in? What is Managed Content? What is Excess Search? How do I calculate the amount to charge my customer to account for Duffel Payment fees and currency conversion?