[Resolved]  EaseMyTrip.com — Payment Easemytrip wants I pay for its "error"

On the 4th October I bought my ticket to go to from Delhi to El Salvador on January. On 6th October I received 2 emails: 1st that the segment from El Salvador to Dubai on 1st February was changed and later that it was cancelled and they didn't give me any option to reschedule it, so I tried my best to contact them until finally they sent me little by little some options of itinerary. They rescheduled in a itinerary that only they can understand that I arrive to Dubai on the 3rd February instead on the 2nd, and through Toronto, which is very complicated to me to request the visa from there. Since then, I'm insisting them to change it to 31 January but it is through USA from where I have visa, but i was told that I have to pay 35862 INR for "the change". So does it mean that customer has to pay for their "errors"????? This is really unfair!!!