Under GDPR, a company may retain personal data if it has a legitimate interest in doing so. To what extent this applies here, I do not know. You might have a c

Under GDPR, a company may retain personal data if it has a legitimate interest in doing so. To what extent this applies here, I do not know. You might have a chance to successfully challenge the termination by legal means, if you actually did not violate Ebay's terms and conditions.