MakeMyTrip India — MMTBlack Code Cannot Be Activated

I have just received my ICICI MMT Signature Credit Card a month ago and I paid the joining fee after which I also received the activation code for the MMT Black Exclusive Tier Membership with an activation link. But the link is broken ! The moment you click on it, it directs you to a page in the app, which then says " Page Cannot Be Found" . How do I activate my MMTBLACK exclusive membership ? There is no possible way to do it ! Customer care cannot be reached either for this ! Expecting a timely assistance !