I paid a specialization subscription(1 month) two weeks ago.
Registered for the IBM AI Engineering course.
The above consists of six courses, and I am currently learning IBM Data Science as the first course.
When I tried to take the first test in this course, I was required to pay again, so I paid but could not complete the test. I don't know why, so I'd like a solution.
In this state, the course does not proceed because the test is not completed.
How much does it take to complete the IBM AI Engineering course completely?