Earth Fare review: I stop liking a store when they put inventory over customers and ignore complaints

I was an enthusiastic customer until a few weeks ago when I attempted to purchase a bottle of olive oil that I found on the reduced shelf. When it rang up full price at the register, I said it was supposed to be reduced, and rather than honoring the price on the item, the cashier removed the marked down price tag and asked if I still wanted the item. I didn't like the fact that I'd been induced by a price cut to select an item that then got fully re-priced at the register, and asked to speak with the manager, who looked at the removed tag and said "no one on my team would do this." Her first reaction! That could only mean that some Earth Fare customer procured a reduced price tag, put it on the olive oil, and then put the olive oil on the reduced shelf, for whatever odd reason--I seemed to be a suspect, especially when they kept showing me the code on the price tag as though I should've noted that it didn't match the item before putting it in my cart, then offered to review the camera footage after the store closed and call me the following day, presumably to confirm that it couldn't have been anyone on their staff.

That didn't happen, and I heard nothing further for several days. After messaging online customer service multiple times, I finally spoke with a store manager who said they hadn't reviewed the camera footage but would honor the olive oil price, just "going forward" I would need to make sure the code on the tag matches the item. This is unsatisfactory because it's not about the olive oil--it's about the fact that I'm not Earth Fare's auxiliary inventory control, I'm a customer who wants to be confident that the price I see on an Earth Fare item is the price I will pay at the register. I shouldn't have to fight for that, nor be embarrassed and denied when I do, and this situation remains unresolved several weeks later. I'm not going back.