This is what I would do. I would speak to the area manager and tell him you've had enough and you expect some changes or you will think about quitting. See how he takes this. If he doesn't help you out then start looking for another job. As tempting as it is to ring the bloke up and tell him to shove it you won't be doing yourself any favours. If you have kids and a mortgage you need to get another job sorted first. Surely you can stick it for a few more weeks whilst looking for another job. Then once you've got a new job then tell him to stick it! Good luck.