For Great Eastern MaxGrowth Enhanced, what is Survival Benefit?

Dear Experts,

My mother bought an endowment from OCBC in 2013. I noticed that the banker told her that she is only required to pay $30,000 over 5 years. However, contract stated that she is required to pay $6,000 annually over 10 years.

I called up the banker and she told me that my mother will receive Survival Benefit for the last 5 years of her policy. When probed further, she just brushed me off.

May I know what is a survival benefit and how does it work in this scenario?

Thank you.