HDFC Bank — unethical and unparliamentary conduct

Tried for investing in hdfclife. Submitted a query on 24th May 19. Thereafter, received at least 10 calls including sundays however, I needn't complain about the caĺls since I agree it's about competition. Finally today I said that I am not investing as of now and will take a call in say next 2-3 months, to which the executive rohit did the following: -
1. Asking details into my not investing
2. Replying not in a so-comfortable tone
3. Telling me that I should have asked for policies of all banks from him
4. Telling me that he had wasted so much time explaining policies to me etc etc

To which I finally asked him to put down the phone and told him that it was his duty to explain the policy to the customer and it's the customers call to invest or not..

To which, Rohit slams the phone on my face

Speaks poorly

Kindly resolve