Dollar Tree

When you go to a different store and find the items cheaper there than at the dollar store you should be able to return the items you just bought with your own cash, especially when you just bought them 30 minutes prior and haven’t even made it home yet. If the items are in the exact same condition as when they left the store there shouldn’t be an issue returning my money back. This should be illegal for hold your funds when you are being the items back to the store with receipt in hand and the manager is the one that even helped you on your purchase