It is the best way to get UC in PUBG Mobile for free. Elite Royale Pass offers a total of 600 UC as RP mission rewards. The players need to buy the Elite Royale Pass just once and need to complete the RP missions. Elite Royale Pass costs 600 UC and the players can get the whole amount they paid to buy back the same easily.
Google Play Free Credit
Google Play Store sends out some free Google Play Credit to the users randomly, which in turn, could be used to buy UC. The players need to select the amount for which they want to purchase it, and the Google Play Credit amount will automatically be deducted from the payment. Thus, UC can be bought at a much cheaper rate.