ICICI Bank — POSDEC charges 14 times deducted Rs.29.5 every transaction

My name is Shivraj Pyati, I have been charged 14 times Rs.29.5 every transaction with tran code POSDEC.
After checking I realized I had taken Gaana subscription and when I didnt have sufficient funds gaana tried to get the payment from my account and got declined.
But why ICICI is charging Rs. 29.5 per decline.
The funny part is the subscription charge was Rs.30 and ICICI has deducted ₹29.5*14=413.
Such a worst bank, they are total liers and fraudsters..this is not the first time I have facing this bank is utter Fraud...I gave no words to describe how worst ICICI bank is...