[vb_mp]

Hm, it does contain the delete_user_subscription method call which in turn rearranges the usergroups.

		while ($subscriber = $vbulletin->db->fetch_array($subscribers))
		{
			$subobj->delete_user_subscription($subscription['subscriptionid'], $subscriber['userid'], -1, true);
		}

I will have to look into why it's not working for me, perhaps the cron is not being run.