HDFC Bank — Amb charges debited

Address:

New Delhi, Delhi, 110058

My account with you, & when im opened my SB account with you, your executive told 10000 monthly balance should maintain. I have always maintained minimum balance & my balance never below 10000 in any day.
Now on 05.12.2016 your are debited my account with 690/-. i was also maintained 300000 avg balance (10000x30 days) as per your guideline.
if you avg. balance changed, you have to inform me. i will maint. revised avg. balance or switch my account.
This is unfair & not acceptable, please credit 690/- in account.

Thanks
Meetu Kakkar
A/c no. [protected]
[protected]@rediffmail.com