I'm Unable to Resolve Linking Error on Rockstar Games After Multiple Attempts

Six years ago, I purchased GTA 5 from Rockstar Games. Recently, I bought RDR 2, and due to this, a mandatory social account became necessary. However, for the past few months, I've been unable to access the games due to a social club account linking error. Despite providing all requested information, including bills, in-game purchase dates, usernames, and the error screenshot, my issue remains unresolved. Rockstar Games claimed they couldn't verify the account ownership and terminated support.