I subscribe for new shares, and every 1000 shares have a matching number, so 2000 shares have to have two matching numbers, right?

Yes, these two distribution numbers are connected. The distribution number provided by the securities company is the initial distribution number, such as 008788, so your two distribution numbers are 008788 and 008789 respectively.

Tip: If you purchase Shenzhen Stock Exchange, every 500 shares have a matching number, and 2000 shares are 4 matching numbers.