Birla Sun Life — Unethical behaviour - no response to requested raised

Godrej Housing Finance representative had recommended me to buy a insurance from Aditya Birla Sun Life Insurance to secure my loan, so I paid the premium and bought the insurance. however, I realised that its really very difficult to contact the insurance company even for getting details or any information. When I visit the insurance company's website to check my insurance details, I am not able to access since the policy number that was provided with is not recognised by the site or in their telephone toll free system (IVR). They have even made mistake in entering my nominee's name which obviously could cause difficulty in case I was dead and the nominee had to apply to get the benefits. This is completely unprofessional and I am feeling cheated and have lost trust in this insurance product. I want to surrender this policy and request full refund of INR 2, 13, 811.09 as I am not able to access my policy details and it's impossible to contact them to get any kind of information hence I don't trust this company that they will honour their terms of insurance policy.