1) You do not need training units or a company name. Pay for it yourself. I forget but, if the company name is required, just put in your own name.
2) "Have either taken the Red Hat System Administration I (RH124) and II (RH134) courses or else the RHCSA Rapid Track Course (RH199) or have comparable work experience as a system administrator on Red Hat Enterprise Linux
Review the Red Hat Certified System Administrator exam (EX200) objectives"
These are just recommendations. That's why it said "should". You are more than free to pay your money and take your chance.