Airtel — prepaid recharge amount debited in bank a/c but not credited by airtel

I recharged my prepaid mobile by rs. 100 thru sbi netbank on 21/6/2020 and same is not credited in my account though amount is debited from my bank.

This has happend to my another phone on the same day with a recharge of rs. 49 which in the name of my wife.

To my surprise when i called the nodal officer kolkata number ([protected] given in airtel official website) it says the number is invalid.

We are at serious trouble. No way to communicate. Please help