I stored up my allowance for 2 months just to purchase enough UC to get the Lucky Spin Royale circulate

https://www.scribd.com/document/1074385697/My-First-PUBG-Mobile-UC-Top-Up-Story-Instant-Delivery-and-Discounts-148685

I saved up my allowance for 2 months simply to buy adequate UC to get the Lucky Spin Royale go, making the grind completely worth it.