hyundai Hatfield.Service department

Bought a pre owned vehicle end of 2023 at Hatfield Hyundai. All went well ans assistance was great. Vehicle still had a 45000 service availabile and only reached 45000 this month so i booked a service at Hyundai Hatfield 12 Febr Then issues start They phoned me and told me service expired and 30000 was not done and i told them that time i did not owned the vehicle yet. It was made clear by the preowned sales persons at time of sale vehicle services was up to date however the service book was missing and assured me it wont be a problem for it shows on their system. So i had to fetch my car with promise from Hatfield service department i can bring vehicle the following day.13 Febr it will be solved. Today took time off from work to again be told problem not solved and the cant get hold of paperwork to prove i bouth the vehicle and service plan that was left. Again had to take my car and away and more promises was made. Did spoke ro the service manager who was so rude to me as if it was my fault. Now having to wait only to have vehicle serviced by Hatfield Hyundai. Everytime needs to take time off from work . Very angry and unhappy about the way been treated and vehicle still not serviced.