What should I do here? HDFC home loan

On February 7, I got my ₹25 lakh home loan sanctioned from HDFC at 8.7% (6.5% RBI benchmark + 2.2% spread).

Later that day, we received news about the repo rate cut. Some people from this community advised me to ask HDFC to reduce my interest rate since the loan was sanctioned but not yet disbursed. I spoke with my loan sales agent about this, but he said they hadn’t received any updates from management.

So, I emailed the person from HDFC who sent me the sanction letter, requesting a lower interest rate since the repo rate was reduced on the same day. I also mentioned that if I requested a change later, I would be charged a ₹5,000 processing fee.

The email team responded, stating that I needed to get in touch with the sales agent. However, the sales agent has not provided any updates and keeps saying that they are already offering me the best rate.

What should I do in this case? Are banks actually reducing the interest rates, or will it take a long time to reflect? I'm yet to take my disbursed amount. Also, is the home insurance compulsory?

I would appreciate any insights that could help me negotiate better. Thank you.