Will the Russian invitation be rejected?

the Russian invitation will be rejected. According to the relevant information, the Russian Immigration Law stipulates that it takes 21 days to 4 days to apply for the invitation letter from the Immigration Bureau. Of course, the Russian Immigration Bureau has the right not to send you a letter. Generally, the letter from the school is handled by the head of the school's foreign affairs department at the local police station. In addition, the time difference and the audit at that time may be long or short. Generally, Russia will not exceed two months, mainly because of the way you applied.