I purchased a bonsai about a month ago. Two days after arriving, it started to drop its leaves, and on daily basis has been losing more and more. Yesterday I found about 20 leaves in one day. Soon enough my bonsai will be just a root.
The leaves that are falling are completely green and look healthy. I have been keeping it moist, but not too wet, and place it near a window for a few hours a day and then back to the living room for the evening and night.
I don't know what to do since this is my first bonsai and all the answers regarding leave falling is normally related to light or watering and I have followed all the instructions carefully.