Central Board Of Secondary Education [CBSE] — Incorrect Marks on Class 12 Marksheet

I appeared for the Class 12 Board Exams in 2022 when the exams were divided into two terms - Term 1 and Term 2 and the weightage was 30:70. I had scored full marks in Psychology in my term 1 paper, i.e., 50/50 (inclusive of practical marks).
On the day of the final result, I found that the marksheet uploaded on Digilocker and the original marksheet said that I had scored 87 marks in Psychology (037).
I applied for revaluation and received a scanned copy of my answer sheet for the Term 2 exam and found out I had scored full marks, i.e, 35/35 in theory, which on addition of my practical marks became 50/50. Even with 30:70 weightage of both the Terms, the marks clearly add up to 100, however, as incorrect marks were entered into the database, my marksheet says I have scored only 87.
This negligence has brought down my Psychology grade and has been affecting me mentally since the past six months. Moreover, not having the updated marksheet is making the college application process extremely difficult.
We had filed an official complaint at CBSE's Pune Office, but despite several reminders we have received no updates regarding the same.
Timely resolution of the grievance will be highly appreciated.