Ignou — improper tabulation of total marks

Iam a running student of ignou.. I got a marks in my paper mlii 04- 46.. I applied for answerscript and reevaluation where i found that my marks for question no 1.1 was given in page no 19 (12marks) but it was not added during final tabulation and my marks drop down to 46 instead of 58.. I contact them.. Via mail and sending hardcopy of my answerscript but still didnt get any reply from them.. Plz help me.. 12marks is a huge marks.. My percentage depends on it..