Spice Jet Airlines — no action taken against my complaint

Dis is probably 9 th time i write dis to spicejet.. After being complain in every possible way through mail.. Tweet n on fb bt till nw my complaint has not been resolved. My bag has been damaged despite having fragile tag. After dat i complained immediately on spicejet at igi delhi airport as per their rule.. Bt after 7 th days no calls nothing.. Wht kind of service provider by spicejet to there coustomer.. No eithecal behaviour from d company.. I think worst company i huv ever face.. At least some other company how big or small they try to contact with there coustomer bt spicejet being worst.. Because i think they don't bother because they knew no legal action taken against them.. Please help me abt d matter.. How can i file legal action against spicejet.