[Resolved]  Indigo Airlines — they not provided full refund (overcharged)

As i have book my flight from jaipur (Indigo 203) to coimbatore (Indigo 6908). Due to e-pass issue i have cancelled my flight. After cancellation its shows me cancellation pending (I booked via ixigo app). And they said they will refund within 7 - 10 working days. After few days they only refunded me 4524 rupees out of 13126 rupees. And also i have paid cancellation fee & insurance fee. They take 8000 rupees as convenience fee😡. And also its corona time so money is important. And also it's a kind of fraud.
So please help me.