My League of Legends Wild Rift Account Banned After Investing 10-15K

I requested another player in League of Legends Wild Rift to play as Mordekaiser, but they refused and caused frustration in the game. Shortly after, my account was banned, and the ban duration wasn’t specified. I’ve invested ₺10-15K into this game, and now my account is banned with no clear explanation or timeframe. I need this issue resolved and my account restored. I’ve spent a lot of money on this game and want to continue playing. Please assist in unbanning my account and addressing this problem as soon as possible.