$250 Refer a Friend Bonus – BlackBull Markets encourages existing customers to invite their friends to the site and trade. If you suggest a friend who successfully opens a live trading account with BlackBull Markets, you and your friend will each earn a USD 250 cash prize. The referred friends must meet the trading lot deposit criteria.
https://blackbull.com/en/refer-a-friend

The Commission Rebate from BlackBull allows eligible traders to receive rebates on the commissions they pay while trading. The rebate amount is agreed upon directly with an account manager, giving clients the opportunity to receive a customized rebate based on their trading activity and account arrangements. To qualify, traders simply need to maintain an active Prime+ account. This offer can help reduce overall trading costs by returning a portion of the commissions paid, making it potentially beneficial for active traders who generate significant trading volume.
https://blackbull.com/en/our-company/account-comparison