@ambitious korean ah I thought that would be IGCSE. don't really know the difference as I did my country's high school
. It is equivalent to IGCSE/O Levels, but I have a diploma so they accepted it and I did the assessment.
Even so, I think they want passes with 80% and above if I'm not mistaken. I don't think they're too strict on that but you can try sending them an email to inquire.