I am 40k+ trophies with 45 rank 30s and 35s. I will boost a brawler for rank 30 and finish it in 2 days. Although depending on the brawler, it's level, and rank, negotiations will be made. Also I am in the U.S. but it won't let me use google maps to verify my location. I finish rank 30s fast and in no time. I will make you very happy with your purchase. I have tons of experience with brawl stars with 2 years of downloading the game. I know how to get your rank 30s easily.
