Sansui TV — Cannot see anything on the screen its black

I am also suffering from agony due to their indifferent attitude towards complain of customer.they are so careless insensitive that after lodging a complain on05/04/2012 vide complain no.-KOL-[protected] their technician attended on same day but was unable to rectify.So they took the mother panel with them for further repair, promising to made good with in 3-4 days.After this the technician not responding to my numerous calls for status.Then I lodged another complain
on 11/04/2012 vide complain no.-KOL-[protected] but nothing happened except empty promises.I inquire about it every day to call center but same nothing happens except empty promises and their technician refuse to receive my call.I'm still suffering...plz help ...what to do next?????

Email id of me --- [protected]@rediffmail.com