*Already addressed the problem in-game*
You need to store your emeralds in your inventory or [Vault] chest for them to appear on your /bal.
If you need any more help make sure to contact me or any other staff member.
Have a nice day.
You can also send a private message to an Administrator about the issue. Also, Alchemist rank gets 10,000 claim blocks, not 20,000.
If you need any more help feel free to let me or any other staff member know, have a nice day.