sed of some combination of letters, numbers and/or symbols) for you to distribute to anyone you deem fit, including other Users and prospective Customers or Drivers. You may only distribute these codes for promotional purposes and they must be given away for free. PUT reserves the right to suspend or terminate any codes for any reason it sees fit and in its sole and absolute discretion. From time-to-time, PUT may offer you incentives for referrals of new Users (the "Referral System"). These incentives may come in the form of Haultail® credits or otherwise. Any such incentive or referral offered to you will be subject to the terms, restrictions and requirements stated therein. Your participation in the Referral System is subject to this Agreement and any additional Referral System rules published on Haultail® or in