I have wrongly recharged to some others Airtel number instead of mine so I lodged a complaint in complaint forum regarding it and I got a call from a number tellng all details of my complaint properly finally he told amount will be credited to u and he asked my card number to credit it so I gav my number he told u wil get an otp pls tel tht number at tht time I checked 10000 was debited in my account so I stop giving otp and he cut the call