Airtel — facing problem related call or data

Address:	Sirmaur, Himachal Pradesh, 173001
Website:	www.airtel.in

Sir/Madam- I have recharge my Airtel prepaid No. [protected] (349) it is validate for 28 days. 6-12 sep.17 service is very good. But last 2-3 days I am facing problem related call or Data .When I am trying to call revert me back Your validaty has been expire on 12, next day 13 or now 14 sep17. please recharge your account.I am using my Intex 3g set. Total calling maximum 40-45 min. daily. data- minimum 70-75 mb daily.I have already mail to Himachal nodal Officer or 121. but not response any one. Then I have call the 198 but they not fw my call to Customer care executive.