Usually the Fashland team is prepared for maintenance and we will warn the players in advance. However, sometimes the game goes into an unplanned maintenance. In those instances, the developers send Mila to clean your products. Sometimes it takes 1-2 hours for Mila to reach everyone, so please wait a few hours before reporting the problem or spending Diamonds.
If for some reason your products are still dirty hours after unplanned maintenance, please open a new support ticket and the developers will clean up for you.