MakeMyTrip India — undue deduction against immediate cancellation of flight

I recently had an extremely upsetting experience while canceling flight tickets from makemytrip. On 27 march 2018, i had purchased two flight tickets from makemytrip for return journey from kolkata to bombay. The two tickets were from the go air and jet airways. But due to the putting wrong destination, i had to cancel the tickets within 5 mins of complete transaction. The total amount i paid for the tickets was rs 9540, however upon cancellation within 5 minutes, i received only a petty amount of 1451 rupees. I had known before hand that canceling tickets would incur some cancellation charges. But deduction of 90% of the total amount is insane and downright unfair. I feel robbed in the name of reimbursement. After speaking with makemytrip regarding this matter, had informed me that such a huge deduction was done by the airline company and thus couldn't help me with it. I expect my full refund asap (As per the cancellation policy of most e-commerce companies).