I completed their form for a background check for ...

I completed their form for a background check for a new position and they refused to contact my previous employers, saying they had no response. When I contacted my former employers, no one had contacted them. Next, this company demanded my tax returns and I knew then that was not a normal part of any background check. I have been through many of these and NEVER had been asked for my tax returns-total scam. The calls I received were from persons who could not even speak English. Additionally, there was no information on their security and encryption protections for personal information and my request for a copy of my report was marked no . Completely unprofessional!