Lic Of India — amount not received in time

sir,
am ravi pandey.my mother and father has been expired in 1997 and1998.both were the nominee of each other and my age is only 7year.when i go in LIC then lic tell us that give me uttradhikar certificate by the court.but court say that your age is only 7year old so firstly u alloted a oliee . but no person made my oliee when i became 18 year old then i give uttradhikar certificate and they give mony in sep 2007.court say to give intrest of these 10 year .but LIC not give me.
i want to say that LIC give me intrest of the 10 year. i was sending meny letter to LIC.but they take no action.

i shall be highly obliged to your kindness act