Bad service from Cosmopolitan Projects

I bought a house from Cosmopolitan Projects in Central Park Lotus Gardens. Later on I realized that the ceiling is falling. I called Cosmopolitan to report it, they delayed to do the checks. They always made excuses and even hiding behind Covid-19 lockdown related issues. Finally, they sent someone to come and verify. Its been weeks now, they do not bother providing me with feedback. I called them many times, their staff is very rude and they are very unprofessional. This is not the only incident that I have reported to Cosmopolitan. I have reported several incidents, they don't bother attending to my issues. I have reported door handles that were not functioning properly, they did not fix them. I had to buy new ones for myself. They also did not finish fixing the cracks on my house. I also had to move a water meter for myself as Cosmo was not interested in assisting me even with contact details of City of Tshwane officials. When you call them, they just send you from pillar to post. I want to put in a kitchen unit, but I cannot do so because I am still waiting for them to fix the ceiling. The issue is also that if i put in the kitchen unit they might refuse to fix the ceiling because they might say the ceiling was damaged by the person who was doing the kitchen unit. In conclusion, I have had a bad experience with Cosmopolitan Projects and I regret buying a house from Cosmopolitan Projects.