Sure, here’s a revised version of your message in proper English:
"Alright, let me start with the disadvantages: You cannot apply using your Grade 12 results; the only documents needed are your reports from Grade 9, 10, or 11. In some ways, Level 2 is equivalent to Grade 10, so I hope you understand what I mean.
As for the advantages: If you prefer not to pursue the levels, you can opt for the NATED (N4-N6) courses. However, please keep in mind that when you enroll in NATED programs, you will be responsible for paying your own tuition fees. The good news is that once you complete your studies, the school assists you in finding a job, so you won't have to struggle with job hunting."
I hope this helps!