Step 4: Share our Facebook Fanpage with hashtag #biosys
Step 5: Email firstname.lastname@example.org with your name and your email address that register at our online store. We will upgrade your membership to 'Premium' and you will receive an email for the membership upgrade.
Step 6: Key in our exclusive coupon code 'PREMIUM10' at checkout page and you will get additional 10% discount on your total amount. You may use this coupon code to enjoy unlimited 10% discount with unlimited usage.