Hello, first of all, I apologize for my bad english.
There are 6 types of rank in the game. Bronze, Silver, Gold, Platinum, Diamond and Grand Master. Each rank has a limit, and when it passes, we jump to a higher rank. Bronze III-I, Silver III-I, Gold IV-I, Platinum V-I, Diamond V-I and Grand Master. You're trying to enter the ranking points at the Grand masters, grand masters of none higher.