If you're talking about the special pre-order bonus thing, you may want to make sure that phone is covered before you get your hopes up. Looking at the photos of that thing make me think its probably too old to qualify.
HTC One® Upgrade Promotion Terms of Use.
7.2 Program Requirements. In order to participate in the HTC One Upgrade Program you must have an eligible used device as defined by the on-line Tool. You can identify if the used device is eligible by utilizing the drop down menus to pick the make, model, and carrier for the used device. If you cannot find the make or model and believe this is in error, you can contact the program administrator at Clover Wireless. The Program is only valid within the United States. You must be a minimum of 18 years of age to participate. The Program is not valid on stolen property. There is a maximum of one (1) trade-in utilizing HTC One Upgrade promotion per registrant. A valid proof of purchase is a) an original invoice with the IMEI number printed on it or b) a copy of the UPC code with the IMEI code printed on it. A copy of a UPC code is only permitted once as a valid Proof of Purchases. Clover Wireless has the right to reject any trade-ins for promotional trade-in submissions where 1) the used device is submitted by anyone other than the user of the used device and 2) when the used device was not active at the time of the new device purchase and 3) the trade-in voucher was not agreed to by you and 4) there is an invalid proof of purchase or 5) we believe there to be fraudulent intentions. Without a valid Proof of Purchase, you will not be paid the promotional trade-up amount.