Over charging a customer and missing products

<p>I just left the Cash Crusaders in N1 City Value Centre - and I'm disgusted and what I just went through. Firstly the girl behind the counter can't find some of the DVDs I wanted to purchase. She didn't even ask staff for help to look for them, and if they are missing then the cover should not be put on the floor for a customer to purchase. She took my name and number and said she'd look for them but the last time the same thing happened I never even heard back from the same branch. Then if that's not bad enough she charged me one price for the other dvds I purchased and when she thought she made a mistake went and charged me another price which was higher only for me to realize when I went to check that she actually over charged me for the one product and that the original quote to pay was correct and not the second amount. Is this how you run business? I feel like coming back, making a huge scene and name and schaming this girl infront of all staff and customers and then want a refund. Do you think that is what I should do to make sure it doesn't happen to me or any one else again? Because what are you going to do now to compensate me for this absolutely horrible experience.</p>