Air Asia — flight change not responding

Hi,
I have booked a flight on april 18 202, from banglore to visakhapatnam, my flight change request is not getting processed, as my flight was cancelled due to extended lockdown, my credit account shows
Zero amount, i trying to chat with ava, but it keeps saying wrong credentials even though i am giving right information. Even after my multiple attempts there is no response, and all iam able to chat is with a bit, this seems they are depriving me of booking a ticket change so that they can charge me more as it can get charged more if book closer to my traveling date as comapared to more advanced booking of 15 days, and they promised unlimited flight changes tii oct 31, but they show no response and i can't even talk to a real person, as all i get to chat with is not.

Tried repeated
Name:santosh kadali
Mob:[protected]