This means that your information has passed their review. Or someone reports that your information doesn't match you. After being found out, you were tested out.

Jiayuan dating website is a serious website. If the information you fill in does not match your actual age, they will not pass. Every time you upload a photo and post a log in it, you have to go through their customer service review before you can display it.

It's OK to re-register another one.