Houze Guarantee Company never handles credit card and other related businesses, let alone charge your information fee in 300 yuan. Please identify the unique brand of Houze Guarantee Company, the address is (Tonglian Building 1 Floor, No.240 Huixinli, Chaoyang District, Beijing), and the customer service telephone number is 4006656400.
Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.