If it is on the Jiayuan website, it is probably because the other party did not read the letter stamp, so he cannot read your letter and cannot reply to you. It is recommended that you subscribe to the "monthly subscription" service. This service only costs 198 yuan/year. In this way, the letter you send can be pinned to the top of the other party's mailbox and clearly marked, and the other party can read it for free! And if you log in to the website once a day, you will also get a free letter-reading stamp, which is probably enough for you (unless you are a super handsome guy and a diamond king who is loved by everyone).

For the Zhenai website, I personally feel that the way the website operates is somewhat similar to the old-fashioned "matchmaker", with some one-on-one introductions, and the cost seems to be higher. Please consider.