@@ -84,9 +84,7 @@ class BusinessAccountService:
 
     def update_status(self, status: Tuple[str, Any]):
         if status not in self.STATUS_STATE_MACHINE[self.account.acceptance_status]:
-            raise Exception(
-                'Update to this state is impossible' ' from current application status'
-            )
+            raise Exception('Update to this state is impossible')
 
         self.account.acceptance_status = status
         self.account.save()
@@ -49,7 +49,7 @@ class BusinessHostService:
         token_limit: Decimal | None = None,
         account_privileges: Tuple[str, Any] | None = None,
     ) -> BusinessAccountService:
-        username = f'{self.user.host_account.company_name}' f'_{random_with_N_digits(6)}'
+        username = f'{self.user.host_account.company_name}_{random_with_N_digits(6)}'
         password = generate_token(15)
         user = CustomUserModel.objects.create_user(
             username=username, email=email, password=password
@@ -132,7 +132,7 @@ class BusinessHostService:
     ):
         BusinessAccountSelector.from_user(
             user, company=self.user.host_account
-        ).to_service().update_limit(new_status)
+        ).to_service().update_status(new_status)
 
     def update_privileges(self, user: CustomUserModel, new_privileges: str):
         BusinessAccountSelector.from_user(