Please, be informed that you can apply for a cashback only in case your trading account is not attached to any Partner.
If your account is attached to a Partner, but you want to activate Cashback on it, you need to detach your trading account from the Partner by sending a request to support@fbs.com, and the option becomes available.
Please, kindly note that cashback is not paid for the trading on Welcome Bonus accounts and ECN accounts.