Toll Free: 1-300-88-7035 General Line: 603-5544 6000 Customer Service & Support : 603- 5544 6542 /6518 / 6692/ 6693 /6762 Email: web@sirim.my Customer Service Operating Hours: Monday - Thursday: 8:30 am to 5:00 pm Friday : 8:30 am to 4:45 pm Lunch break: Monday - Thursday : 1.00pm - 2.00pm Friday :12:30pm - 2:45pm.