Muthoot — manager speak filthy and irresponsible

Address:

Bangalore, Karnataka, 560040

Hi,
I had taken a gold loan of 3lakhs from muthooth chandra layout branch, the manager there said they don't have any payment for partial payment if we are doing it same day.
When i made 2l and 1l partial payment within 5 mins due my bank constraint, they took partial payment for whole amount and intrest. On top of it stamp duty amount is also included in principal amount.
When i asked clarity on this manager responded very filthy and bad and he dint respect elder people who were there.
When i asked for his visiting card he mentioned no muthoot manager will have visiting card and he refused to share his number and id.
Is this the customer representative what muthooth has in there organization???
I would like organization to take action on such un educated manager who come without knowing how to respond to customer