Booking.com

The account deletion process requires the user to check their email. This makes the process unnecessarily difficult.

The user’s eye is drawn to the large “Total Price” highlighted with a green background. This price; however, does not include the fees listed below in the non-highlighted section. This tricks the user into believing they are paying a lower price than they are.

Many websites and applications these days are designed to trick you into doing things that their creators want... But one of the most manipulative websites I’ve ever come across is Booking.com, the large hotel search & booking service.