Regarding the welcome bonus, it is common practice in the online casino industry to limit the offer to one per player or account. However, casinos may have different rules for other types of bonuses, such as reload bonuses or cashback bonuses. These bonuses may also have specific terms and conditions, including how many times a player can claim them. It is always recommended to read the terms and conditions carefully before accepting any bonus offer to avoid any misunderstandings or issues.