Walmart screwed up

"Question of the day....If you go into Walmart to get your prescription refilled and they say they need to get doctors approval cause you have no refills left...do they really do it? I THINK NOT!! Gave me med refill with the wrong doctors name who has never even seen me for my thyroid and has no records of it. So how can they refill it if the doctor has no record of me?? Just sayin......"