Milton in Office Space.

It seems like the manager is trying to give you a hint that he does not want you to work there anymore by not scheduling you for any hours. He may say he thinks you do a good job, but if that was true, why is he hiring staff while you don't get any hours? I feel he is being very passive/aggressive, and can't deal with any confrontation apparently. You deserve an answer either way. Since the store manager appears to be the problem, find out who the HR rep or the district manager is for your area and contact them. I'd also start looking for a new job, even in this economy some places are hiring.

Good Luck!