My Valorant Account Was Stolen and Riot Refused to Return My Skins

Hello everyone, first of all, my Valorant account was stolen even though it had two-factor authentication enabled. I didn't give the password to anyone, but it was still stolen. When I reported this to Riot Support, they told me the account had lost its security and I couldn't get it back. There were skins in the account that wouldn't drop in the market. Even though I know everything about my account, they didn't give it back to me. There was nearly $700 in my account. I'm very distressed. Please help me.