hsn and hp computer bought a computer with lifetime repair from hsn but when i called about a repair they changed co. and no longer offer the warenty

i bought a hp computer from hsn with lifetime repair when i called hsn about repair they sent me to hp and they would only fix if i bought more insurance and hsn no longer had the co and they said they hired another co. but they were not otherized to repair anything as stated by hsn all i got from hsn and hp computer was if i bought more and better insuranse then they would repair it but even though iallready had there insurance it wasnt any good because they didnt work for hsn anylonger when i asked if the knew insurance would be good if that co.was fired they refused to answer and both hsn and hp would only repair it if i bought other insurance even though ialready paid for it