CRACKS AND TILES

We bought a house from a developer named Lenova Construction in 2022 since we moved in we have been struggling to get Lenova to fix cracks and tiles, they claim that NHBRC told them not to fix cracks. These house was built between April 2022 and was finished in September 2022. Lenova refuse to fix roof and all the defects. We are sitting with cracks since 2022 now it's 2024.