I guess you are in US or CA, so talk to broker you should speak English.
Just a joke.
It is a general knowledge allmost lenders allow only $1000 or 1% (higher) deduction in insurance. So I do not think it makes any sense to argue with broker. And after closing, you should deal with lender and not broker.
Check with your closing document, there must a form regarding insurance requirement. If you did not sign the form, you can argue.