If you’re sure that you want to stay in Groenveld next academic year 2019-2020, you have to follow the procedure as described here. This is possible from now and should be done by Thursday March 28th  2019 at the latest. The manual how to clear your browser's caches for Internet Explorer and for Google Chrome can be found here.  If you are not sure yet whether you want to stay, you can always check later if there is a room available, but you have no more priority after March 28th.

Still questions after reading the attachment? Don't hesitate to contact me.