Originally Posted by
arjen05
Since mid December I haven't been able to find the link anymore. Called KLM this time and they told me it disappeared due to a bug on the website. Not sure whether to believe them, since they've been telling me a lot of nonsense in the past months, so @mandatory 's reply here sounds way more logical.
It's correct, that option has temporarily disappeared. It (or a replacement) should re-appear soon.
This never allowed you to book a specific fare class btw -- only to pick between restricted/semi-flex/flex.