The quality of Zhengzhou Delaibao integrated ceiling is very average, the price is very expensive, I was deceived, the quality of the workers is very poor, the project is poorly done, how can I protec

The quality of Zhengzhou Delaibao integrated ceiling is very average, the price is very expensive, I was deceived, the quality of the workers is very poor, the project is poorly done, how can I protect my rights and interests?

Delaibao should be pretty good in the industry. First of all, you should confirm whether you are using its own manufacturer's integrated ceiling. Now many dealers sell other low-price products with brand names. , Secondly, when it comes to projects, manufacturers generally pay more attention to them, and this kind of phenomenon should not occur. If there is a problem with the project in the end, can you contact the manufacturer?