Avoid this.
I made a cc payment using Airtel app. Amount got debited from my hdfc bank, airtel app showed "payment successful", but nothing happened after that. Got stuck at that screen.
And this transaction is not even showing in transaction history of airtel app. It's nowhere to be found!!!
Thankfully i took screenshot at the loading screen where it mentioned - "payment successful" along with the trx id, so i have the transaction id.
Mailed them twice with the trx details.
Had I missed taking the screenshot, i would have been running blind behind Airtel.