Full Answer
To flag a problem in course materials:Open the course material you want to report a problem with. You can only report problems with videos, readings, and quizzes.Click the flag icon.Choose the type of issue you're reporting.Type as much information as you can about the problem, then click Send.
To request a refund, follow these steps on a computer:Open your My Purchases page.Find the course or Coursera Plus subscription you want a refund for.Under the Refund Deadline column, click Get Refund. If you don't see this option, the refund deadline has passed.
Coursera's customer care number is (800) 952-5210. You can contact the company for any queries or complaints regarding the courses, refunds, payments, etc.
Make sure you are logged in. You will see a chat option at the right bottom of the screen. Click on it and you will be redirected towards the live chat menu.