Airtel Prepaid — validity of mobile internet usage is not updating

Address:

North East Delhi, Delhi

Sir/Madam,
today,6/2/12 I recharged my mobile no-[protected] for mobile internet for amount Rs 98.transaction id is[protected].But usage validity is not updated.It is showing the same validity as 8/2/12 for previous month.So I am very upset.
So you are requested to resolve this matter as soon as possible as because my internet usage validity is till 8/2/12.I dont want to suffer any inconvenience.
thanking you
prakash chandra mishra
mob no [protected]