Dell Warranty is reflecting incorrect data as per technical support and support manager

i currently have a dell Inspiron 5558 laptop for over an year now but the screen stop working over 6 months ago, i looked up the warranty information at the time of screen stopped working and was re-assured that it showed February 18, 2017 therefore i did not consider that it is very urgent to call tech support since i have other laptops. today when i call the support service, i was informed that product was not registered and i have to pay $233 to replace the LCD screen, they still argued that dell warranty website showed the correct information but when i looked it up, the website still displays the same.  did anyone else encounter this issue??

below is the warranty service which is still display at this time