What to write in appeal for a rejected PhD application?
You don't say why you are appealing the decision.  If only 9 out of 116 applicants got a scholarship, then it is overwhelmingly likely that they turned down many strong applicants.  Do you have a good reason to believe that your application is stronger than the 9 who received the scholarship?  

I hope you're not under the impression that simply not having received an award is grounds for appealing the decision.  What if all 107 unsuccessful applicants appealed the decision?  The program would surely have to reconsider having an appeals process or perhaps even giving out the scholarships at all.