Is it true that you cannot take the high-speed train after receiving the overdue notice?

If you can't take the high-speed rail, the official name is to limit high consumption, that is, you can't take the high-speed rail plane, you can't stay in a hotel with more than three stars and so on.

This restriction was issued by the court.

Overdue will not lead to restrictions on high consumption, only overdue arrears will be prosecuted to the court. After the court decides, if it does not repay, it will issue an order to restrict high consumption.

Note that restricting high consumption has nothing to do with the central bank's credit reporting. Restricting high consumption is enforced by the court system. The central bank's credit report is not mandatory, just because your credit is not good, you don't approve loans and don't cooperate with you.