I have no experience regarding the Advanced Diploma, for that please refer to the blog.
Professional level certificate means ACCA affiliate, It is evaluated as 4 years Bachelors's degree.
It should be because in the course by course report each of the undertaken courses is marked equivalent to Candian courses along with the GPA, whereas in ECA your general degree's equivalence is assessed. the course-by-course report is more detailed.
P.s you can review sample reports at WES's website and please also ask others to share their experience regarding that if someone has gotten through the process