Where should I file a complaint .. if the Ministry...

Where should I file a complaint .. if the Ministry of Education itself ignores both calls and what letters with a request !!! Since February, our house has lost peace ... I can not arrange a second daughter for school .. the same as where to study the first child .. For what did the online registration, with the mandatory items ????
1. Place of residence
2.If at school to study someone from relatives
3.If there are either invalids or veterans of the Karabakh war in the family.
We pass through all the points .. but no one even wants to listen to us !!!
I have my first daughter with a congenital heart defect, transfer N-number of operations .. study in school 264 in the village Ahmedli, husband Vetiran of the Karabakh war and my child has no place in the Russian sector. !!!!! it's outrageous !!! where to apply ??? why our Ministry of Education does not consider such problems !!!