Oneplus - False offer show on OnePlus site and OnePlus store application

My name is Gautam. On OnePlus site and OnePlus store application they are showing an offer in which if we put our OnePlus tv serial number on their application then i will get a invitation code via that invitation code i will get a Netflix button added tv remote free of cost but whenever I am trying to order that remote then its show out of stock. But when I contact to customer care then they told me that they raise a order of remote for me and for that remote cost ****. And then I told them about invitation code they said that the tie up with Netflix is now ended and the free remote is only available with ** inches Q* series LED but on there oneplus site this information is not mentioned. Now they denied to deliver my free remote.