BIG FLIX — Membership card not activated

This is regarding a membership card not activated yet its 7 days from purchase. i purchased a membership card from Big Bazaar under a scheme where i have pay 150 for 2 mnths but big flix not activated my membership card. i called several times & i have launced a complaint also but there is no replay from there side, and no updates about my complaint, i always call them & they said we do work on your complaint.
please suggest what can i do know.