Visa Denied

Hi there, im 8 years in doha and working as admin, i need your advice and help because I want to take my sister here but since we have salary bracket in qatar my salary in not enough to sponsor as family visa, so I look for an agent who can provide me Business visa.then all the process was successful, March 3 2018 her flight but sad to say she was denied by the immigration in the Philippines because they are asking for my original Birth cert, Marriage Cert, and prof that I am here in qatar. but before that, I provide the requirements but all copies to my sister to show them but still deny.and the official advice her to rebook the ticket and provide my originals certificates, so Last April 3 2018 its her flight again all requirements are all okay but they question her visa, it should be family visa or Tourist visa, so deny again. Please advice what to do i spend to much money for this.
Okay, As she wishes.
Take guidance from somebody from your country who knows the way out of such situations if there are any, and please don't follow the advice posted by Molten Metal.
Jeany, Stop everything for 3 months then start again.