The Securities and Exchange Board of India (Sebi) has barred two entities and three individuals from the securities market for providing unauthorised investment advisory services. A2 Financial Services (A2FS) and its partners, Ashish Jain and Ashutosh Mishra, and Money Booster and its sole proprietor Anurag Singh, have been barred from the securities market, as per two separate orders passed on Thursday. They have also been directed to refund the money collected from the investors, in respect of their unregistered investment advisory activities, within three months from the date of the orders.