First check before contact:
You are able to login to Brightspace, webmail?
Collegerama is connected via SurfConext (which is the gateway to all TU Delft platforms). Collegerama only checks your netid on the authentication server. If you can login to your webmail, you should also be able to login to Collegerama.
Is there an issue at TU Delft, you can check it here: http://meldingen-ict.tudelft.nl