Airtel — Multiple transaction occurred.please refund the same

Hi this is ashutosh sinha.today in the morning, i was doing the recharge of 49rs for my father's airtel prepaid mobile [protected], through my lappy.after entering otp it was showing otp mismatch ..try it again.so i clicked on resend otp option n entered 3 times otp.it came try again otp mismatched.when i chked 49 rs was debited frm my father's card three times, so plz refund 49*2 i.e. 98rs in my father's accnt asap.my father's debit card is[protected]**********..thanx