Why can't I get a message about the vaccine appointment?

If this is because you have installed software such as Mobile Guardian, you only need to look at the blocked messages.

However, if it is intercepted by operators, there is no way out, and operators can only be expected to coordinate.

Just like there is a wing health in Guangdong, mobile Unicom users who make an appointment through him sometimes can't receive text messages and can't help it.