Hack account (perma ban)

Hello, my friend has a war thunder account. Once, when he was drinking, he saw that two other friends (Chinese) had joined him without his knowledge. And another week, when he logged in, it wrote to him that he had a perma ban due to the fact that he allegedly wrote inappropriate words in the chat, even though he hadn’t played for about 5 days. So I’d like to ask if there’s anything that could be done about it, since it’s not his fault. It was an offense 3.2.3. .

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