I stored up my allowance for two months simply to acquire enough UC to get the Lucky Spin Royale go
https://www.scribd.com/document/1003135799/Instant-UC-Delivery-My-Real-PUBG-Recharge-Experience-on-Manabuy-196444
I kept up my allowance for 2 months simply to purchase ample UC to get the Lucky Spin Royale move, making the grind tremendously worth it.