GoAir — Mis behaviour of on ground staff at Jammu airport-Anita Raina

Sir /Ma’am
Anita Raina on ground staff of Go Air at Jammu airport misbehaved with us while giving boarding pass. We couldn’t do web check in because non availability of seat in ine row and i was carrying infant also . I requested her she replied that she will not charge anything for boarding pass since seats weren’t available for web check . When i raised the issue that we should have facility of web check in in a row (atleast when infant is with us) she said that Go air is not my airline this is what policy we have and later asked us to pay 600 .
We are at AirPort travelling to lucknow and do have return tickets from lucknow to Jammu and i dont wish to travel back with Go air i want my return tickets to be canceled and refund