My credit card/TWINT payment keeps cancelling. What can I do? 22 August 2019 06:49 Updated Contact our customer service using the contact form. We will gladly help you if this occurs. Related articles How will I be reimbursed once I have returned an order? I’m seeing the message “Invalid login credentials” when I try to log in – what can I do? What payment methods do you offer? Who pays for my return delivery?