Consumer Redressal

hi, this is shivaprasad from bangalore, i had purchase a datacard of mts, i raise complaint against speed issue in their customer care, but what they did is simply closed as their decision they not taking any feedback from customer, from beginning i phased the speed problem but they have not taking any proper action for that against this issue i have send mail to higher authority which they are mentions in their website but i had not getting any call from them, they closed them self which is logged a complaints in mts, please put case against them, they have simply cheating a customer and making money, if they dont have a serve better ask them to close company why they cheating us.