GoAir — rescheduling of ticket

My ticket from delhi-srinagar got cancelled due to weather conditions. I got an sms from go air that my flight is cancelled and go air will contact me within 24 hours for further assistance. Di spite that i called them within 24 hours where they said that we will not be able to reschedule your ticket without give any justification.. Moreover there call center staff hung up after keeping me waiting for more than 45 mins on two ocassions. They are telling me that only refund can be initiated and i have to book a new flight which is costing me at least[protected] more.