We understand your concern regarding your account; however, we do not have the details of your ban. Please take a moment to review the Security & Enforcement Policy which outlines reasons an account can get banned Activision Support .
Additionally, bans are not subject for further discussion or appeal. Before any action is taken, the account is carefully reviewed to prevent a false positive.
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Please do not create another discussion regarding this matter.
For any game purchase, you will need to contact the retailer from which the game was purchased for a refund or credit.
Regards ^AH