Airtel — recharge not updated since 11 days are over

This refers to the subject matter, please note that for the airtel number [protected], i have recharged from airtel application through airtel bank for rs.399/- and it was not reflected to this number and i could not able to call also and messaging low account balance. There after i have called up on airtel customer numbers several times and got to know that the query will be resolved in 2days and also asked me to recharge for rs.10/- more to get updated. That also done by me but rs.10/- only got immediately updated to this number account. However till date inspite of several complaints rs.399/- was not updated to my [protected] number till date.
So now what to do about, i don't understand.
Please resolve urgently.
Thanking you
Sanjay kale
[protected]