Cat case

Sir, In my case, I challenged a UPSC recommended candidate. He unwilling to join the post. I am the next candidate in the selection list. CAT ordered to send a representation to the respondents and directed them to dispose my representation within six weeks. Accordingly OA was disposed. As per recruitment rules, the recommended candidate was not joined, next candidate from reserve panel should be recommended. In this case, 1. whether UPSC having any ground to file appeal without recommend me?. 2. Can I file contempt of court, if they have not disposed my representation within the time frame?. 3. Which is a good move, filing contempt or approaching them via RTI & grievances, because filing contempt may delay the case further. Please guide me for my next best approach.