When level 1050 is reached flowers are added instead of new levels. How can these flowers be used?

Currently, level 1050 is the highest level you can reach, which corresponds with the end of volume 4. Once volume 5 becomes available, the flowers you have amassed will go toward the levels in volume 5.

Tip: before volume 5 is released, put items in storage, so you don't level up all at once. Then you can easily complete the HW case that asks you to level up by taking out decoration as needed for flower requirements.

Coins from buildings