I saved up my allowance for 2 months just to acquire adequate UC to get the Lucky Spin Royale bypass
https://blogfreely.net/reiddarqfi/my-honest-pubg-mobile-uc-top-up-experience-with-manabuy-a-players-story
I kept up my allowance for two months simply to acquire adequate UC to get the Lucky Spin Royale go, making the grind utterly valued at it.