HDFC Bank — misinformation on gst on jumbo loan

Address:

New Delhi, Delhi, 110008

While i called the phone banking to convert a purchase in EMI, I was informed that I am eligible for Jumbo Loan, all seemed fine, i contacted my personal banker to proceed with the same. However no where in our conversation was i informed that there is 18% gst on every month interest which totals to 10000 rs for my total loan tenure.
My loan money is in my account and i received an email from hdfc stating the terms after 24hrs of dispersal and got a shock that gst is excluded. Thats cheating as somebody only does this to achieve their monthly targets or earn few incentives but jeopardizez the other person's hard earned money

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