atlassian firm not allows to delete account for no reason

[fables alive]

As far as I can tell, Atlassian is preventing us from deleting our free account whenever we want by making up unnecessary excuses. They have no right to do this. And they’re just making excuses.

went to 
https://id.atlassian.com/manage-profile/account-preferences
pressed "delete account" button. and says you cannot delete because of rabbits are white.

Your account can't be deleted because:

• User is last billing admin of a transaction account that has one or more active entitlements.