Rules: US only. Starts March 11th, 00:00 AM PST, 2019, and ends March 13th, 23:59 PST, 2019. Codes may only be used once per purchase. If two codes are entered, the code with the higher discount value will be applied. Each code may be used once per customer. The system uses your IP address to determine whether or not a code has been used already. Quantity is limited. First come, first served. Anker reserves the right of final explanation. If you have any concerns or questions, please feel free to contact us at support@anker.com. By offering your email you agree to thePrivacy PolicyandTerms of Use.