Foshan Nanhai Yanbu Social Security Bureau

That place is quite off center. You should get off at Huang Qi Yanbu Furniture City (next to Jiazhou Square). Across the street, there is a residential area with a yellow building, and then go to Foshan. After passing a residential area with a yellow building, there is a gas station next to it, and then walk past the gas station. Opposite the gas station is Huang Qi Social Security Bureau.

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