Indigo Airlines — Flight cancellation at last moment and no way of communication between me and the airlines

Address: New Delhi, Delhi, 110001

Website: www.goindigo.in

My flight no - 6e 164 has been suddenly cancelled which was scheduled to depart today from bangalore (2nd december) and i have just been informed 5-6 hours ago. This is horrendous.
If you cancel a flight then give me another option in the same price. But none of their customer care numbers is working. I have been trying since last 3 hours. They are illegally pushing your customer to buy a costlier ticket. I want them to learn a lesson so that they don't play with people like this in future.
Name - ashish agrawal
Pnr - ncgbug
Contact no - [protected]