I booked a one-way flight (full fare, fully flexible) via the Emirates website on my mobile phone. Two days later I tried to cancel it. In the FAQ it says "Can I cancel my booking? Yes, you can make any changes to your booking on emirates.com through Manage your booking."If you follow the link on your mobile phone, there are many options to manage your booking, but none to cancel your booking. Instead they prefer to give you options to spend more money, like booking a car or a hotel.I called the customer service who confirmed that it is not possible to cancel your booking on the mobile version of their website, and also not possible via the customer service. So it is effectively impossible to cancel a fully refundable flight if you have no access to the desktop version of their website.This is fraud, because it is an unlawful constraint. If people who don't have access to the desktop version of their website are able to book a flight, they also need to be able to cancel that flight on the same device or via the customer service.