KIA won't service my care

I bought my Sonet from the dealership October 2023. When I brought my car in last week for its 1st service I was informed that it was not covered by my service plan as LiquidCapital stipulates that it should have been brought it in at what comes first, 1 year or 15000 kms. You sold me the vehicle and I don't care if you outsource the service plans to someone else. When I bring my car for a service, then you should honor that. Now it seems that I skipped the first service and that I don't take care of my car. Where is your aftersales service? I also phoned in August to ask if I should bring my car in as I got an alert on my dash and I wasn't informed that I HAD to bring it in in October or it won't be covered by my service plan. What kind of brand are you that does not accept responsibility for ensuring customers get what they paid for?