Airtel — Rs.598 amount was not refunded and no proper response from them

Hi have recharged Rs.598 pack from AIRTEL THANKS APP and it got failed but my money was deduced immeditely, I have waited for almost 1 day but no response from them regarding the refunded and even still now I didn't receive my money back to my account.
when I tried reaching customer care through 121 or 198 there is no options available to talk to them, so have send an email to them to [protected]@airtel.com but no proper response from them too.

I totally disappointed and very much frustrated on their poor response. Please take legal action against them.

Reference number:

Reference number:
[protected]/CCAAIRTELIN
Ref num:[protected]