Flight to Lucknow – post poned

There is one sentence which exactly describes what happened this morning at 5.45 at the new Delhi airport:
“The awkward moment at the airport when you try to check in your luggage and the person behind the desk tells you that the ticket is not booked for today.”

We canceled the ticket as it clearly stated to be booked for the 13.12. Instead of 13.11. But why the hell did alex get a text from air indigo that he has to hurry for the check in just 30 minute before the flight departure?
Anyways we got a almost full refundand bought tickets from jet connect at 1.30  pm.