Cleartrip — Cheated me of my hard earned money by cancelling my ticket without informing me.

So my family had a flight from Chennai to Bagdogra. We were 3 passengers in total. But unfortunately I had to cancel one passengers flight. So I did on the 4th of April and everything was going ok. I got my refund after the hefty charges of the one passenger I cancelled. But 4 days before the flight which was on the 19th of the April I get a message that the whole flight has been cancelled. Cleartrip cancelled my flight without my permission on the 15th of April saying its the same PNR so they cancelled it and charged me for it as well. They say I should have called them and canceled and they charge for calling and cancelling a ticket as well. Mind you nowhere is it mentioned that if you cancel one passengers ticket then a few days before the flight when the flight cancellation charges are more, Cleartrip will cancel the whole flight. This is straight up cheating a customer 101. It was showing confirmed till after I got the message and then I was asked to cancel with the reasoning that if I wanted to get any refund at all I have to do it. More than 60% of my money has been cheated by Cleartrip. I wouldn't have even come to know about this if I hadn't called them about this matter.
Please help me get my money back or at least make sure this company that takes money like this does not do this to someone else.