The security code sticker that is used to identify if the product is authentic from Eleaf iStick was removed by FastTech in purpose. Eleaf iStick enforces a Minimum Advertisement Price policy, which is commonly known as MAP. FastTech was never asked to and thus has never signed any sort of such MAP agreements with Eleaf iStick.
As a precaution for avoiding possible legal actions taken by Eleaf iStick to raise FastTech's prices to customers, we chose to remove all security stickers from all such products. We apologize for this.
Please note that FastTech never advertised that these products come with security stickers, nor do we advertise the products as officially endorsed by Eleaf iStick.
Regarding warranty, FastTech replaces all defective products within 6 months. Eleaf iStick products are also covered by our satisfaction guarantee policy, and you're entitled to a refund within 45 days after delivery. Detailed descriptions of our buyer's protection policies are available here:
http://support.fasttech.com/FAQ/stan...oduct-warranty
If you're still uncomfortable with the product, please reply and let us know. We will send you return instructions and, as soon as your return arrives, FastTech will refund you for the product.
Please feel free let us know if you other questions. FastTech is commited in providing genuine products at low prices. Thank you for your understanding.