Can I get a refund if the property company fails to pay the endowment insurance in the property company?

First of all, because the endowment insurance for land acquisition in all parts of the country has not been clearly stipulated, I don't know whether you will enter occupational insurance, agricultural insurance or other insurance methods when you land acquisition. If you enter the occupational insurance, you will definitely be able to retire when you reach the retirement age of occupational insurance. If it is other insurance, it depends on whether the number of years after your other insurance is converted into occupational insurance is enough. If it is not enough, you have to retire according to the retirement age stipulated in the insurance where the land is requisitioned.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.