Jukaso Journeys — Not providing services as promised

My card no.is 157448.I purchased membership in June 2017.and I paid 50, 000.But since 2018 they are not responding to any call.They are not responding to my calls or email.They are refusing to refund my money.Now they are again demanding Rs.5000 to revive the membership.I don’t know whether they are from Jukaso or some fraud.
From, Hirdesh