Lack of customer service

Samsung failure to take responsibility of their mistake when changing customer benefit. I wrote a complain to Samsung yesterday with regards to them not covering the screen up to year of the Galaxy Note 8 as they had previously done for the galaxy. They told me that they have excluded the Note 8 from the cover but you can only do this through an insurance. When I stated that this was never communicated to myself by the agent who sold me the phone. They told me that there is nothing they can do and the matter is closed. I feel that this is an unfair response from Samsung.