Which platform is cheaper to recharge the Elf Festival?

Official recharge. First prize of Elf Festival: On the first day, you can get double excellent weapons, permanent monster killing experience +5%, life gems, blessing gems and first prize gift package. The next day, you can get the title of "miracle soldier", hang up the card, attack the magic weapon, keep the magic weapon and live the magic weapon. On the third day, you can get the soul horse of the Black King, intermediate attack magic, intermediate defense magic, intermediate life magic, and offline hang-up card. The more players recharge, the more benefits, and it is cheaper for players to recharge through the official.