BUSD balance 10,10 but when purchasing drops to 0

Hi. I transfered 10.10 BUSD to MetaMask wallet from Binance through BEP20 network. Added the BSC network on my wallet and custom token as well.
My goal is purchase a Splinterlands spellbook, but everytime i click to purchase using BUSD the wallet only shows 0 (zero) balance.
What is going on?