Not sure why are they overcharging as previously I had not heard any such thing about Zebpay. Do they actually require such a high fees in order to transfer btc or they are just overcharging users due to high demand? This actually can impact them too .
All exchanges adjusted their fees because of the sudden price increase so I hope you understand it.
That is not true
COinsecure still allows you to manually put the fees you want to pay.
And cause of the price increase the fees in bitcoins shouldn't change. Only the fees in fiat should change.