Keep your money in your wallet
It is becoming more and more clear what a scammy buch of greedy devs we are dealing with... basically if you top the league table they'll buff up all other players in the server so that you'll need to re-spend your hard earned money to get on the top again. Went to 1st to 50+ and they've been pretending to be looking at fixing things for a few days now. What a shame this glorious IP has been sold for such a low quality gacha game mechanic!