Bajaj Finserv — my emi card is blocked without intimation

Address:

600021

My customer id — 87181623 and mobile number [protected]... Iam paying the emi without any dues. But my card had been blocked. I paid 500 for getting the emi card.. Now th company has to unblock my card or else should return my card fee.. If i contact also there is no support from them. Its ia waste of money for me. While purchasing the card they said it is life time free.. But withing 10 months the card is in blocked statement