puies you can't do anything against prometric but let me tell you, the IIMs have to give your score through RTI. I know that CAT is being conducted by Prometric. But let me tell you, we all have paid the fees of rupees 1650 to IIMs and they are going to conduct the CAT exam. Now it's their concern that they have given the contract of conducting exam to Prometric, but as they are public institutions, it is mandatory for them to provide you your scores. If we file RTI against IIMs then they have to take scores from prometric and provide us the same. Honorable Supreme Court of India has also given the ruling that each and every exam must provide details of the exam and scores. For IIMs if they call a raw score and scaled score, the display of both is compulsory. The same is happening in case of UPSC exams. They display whole content of exam. So you have all the right to file RTI and IIMs have to provide you the relevant information. There is no prometric involved.
Hope this helps
Damn with IIM-K and Prometric, so many shocking scores this year
I think all relevant points are covered..