Bad service, huge premium and sub zero regard for customer safety

Bought a Kia in 2020 with a full maintenance plan. First service was fine. 2nd service fine.. 60 000km and the **** starts... Huge issue to get brake pads replaced, get told no the garage measured the brake disks with vernier so claim for disks is rejected... 75 000km service - no there is still live left. 90 000km service, only front disks approved, but old pads get fitted back on new disks.....