Some places have a regular (desktop) website with more features and then a stripped down, easier-to-read version for mobile users. Often the site will detect what kind of device you're using to access it and automatically send you to that version. This is usually fine unless you need to access some features that's on the regular website and you only have a phone. Then you sometimes get the option to switch to the regular site on your mobile phone so you can access that feature. Does that sound like what happened?