Why were you in such a hurry to repot it?
It just adds stress to the plant.
You buy it and bring it home to your conditions. That stresses it to some degree. I would have let it adjust a little to your conditions. Maybe repot it in a couple of months.
Then you repot it immediately! That adds more stress. And having stressed it twice within a very short period of time, it is no wonder the the plant is showing signs of being unhappy.
I preach going slow with a new purchase.
