Customer Service Center
What do I do if I had technical difficulties during my exam?
How do I determine what exams I have credit for?
Customer Service in U.S.
Email: [email protected]
Phone: +1-888-697-3900
Monday - Friday, 8 a.m. to 5 p.m. U.S. Central Time.
Customer Service in China
Email: [email protected]
Phone: +86-10-6580-0686
Monday - Friday, 9 a.m. to 6 p.m. Beijing Time.