Call of Duty Warzone Account Reset Issue

I'm devastated to report that my account in the Warzone section of Activision's Call of Duty has been reset. Despite purchasing numerous packages and membership deals, all my progress and purchases have vanished into thin air. Despite following all the steps provided on the Activision support website for account recovery, I've yet to find a solution. Everything I bought with real money is gone. All characters, weapons, and in-game progress have been wiped out. I urgently need support in this matter.