It is human nature that people like to be praised and appreciated. When we look at the construction site, we will see that it is well done. Don't be stingy with language, give praise. Of course it's not the bragging kind. In order to get praise again, workers usually do the next job seriously and are unwilling to live up to the expectations of the owners.
If the customer is willing to go further and tell the workers that you have done a good job, I will take pictures bit by bit and send them to my colleagues who want to decorate the house. I will take photos and post them online, so that the decoration master can concentrate on it. If he sees something obviously bad, he needs to bring it up clearly. Work attitude doesn't need to be tough, but it needs to be firm, which means you must solve it and not be sloppy. At this moment, he naturally knew that it was impossible not to rectify.
If you want employees to give good advice, you need to go further. For example, if the customer has too much wine at home and needs to hit the wine cabinet, you need to know how high the tallest wine bottle you own is, and whether there are many such high wine bottles, then you need to let the workers make the bar of the wine cabinet as a standard. This is the basic principle of all bookshelves in the shoe cabinet.
Command oppression is not easy to use, and there is no need to be too polite. In other words, I respect you, face you fairly, and don't lose my temper with you, but I made it clear from the beginning that I will resolutely put an end to things that hurt my interests. Workers and customer service have made your attitude clear, so you won't deliberately try your luck and do it seriously.