Managers lie and staff are lazy

So I recently purchased a sandwich press from shoprite. But when I checked I had taken a sandwich maker instead. So I went back to the same shoprite to exchange it for the one I actually wanted and I was refused. So I called the store and spoke to a manager Jerreau. Who told me I can do an exchange. Then I went back to the store and again they refused. The package is not damaged and it is not pass the e, change date. However they refuse to do the exchange and honour their exchange policy. Shoprite kuilsriver is the absolute worse and their staff likes to lie. Their reason is that they have to do a refund to do an exchange. And they don't do refunds