Airtel — airtel number does not exist

My airtel number ([protected]) has been deactivated inspite of the recharge I made on 10 April 2018.(Refer photo). I tried to call the number on 26th April but get this message " number does not exist.
Last sms I received was on 25 april. (Refer attached photos). Within one day my service was deactivated without notice.

Currently I am abroad and kept enough balance such that I atleast receive sms for my banking transaction.

I have a flight and my number is linked to many places like bank, whatsapp, etc.

My friend enquired about this at nearest airtel office even those guys are unable to figure out the cause for this.

I request to please activate my sim. In case of any recharge required. Please let me know

Thanks
Sandesh