Worse service

Yesterday while shopping at Edgars Active we saw a takkies that was on the display which had a reduced price tag in it and when looking for the shoes we could only find the one leg that was on display, I then called a lady that worked in the store to assist us which she did and found that it was the last pair in store so when she found the shoes she told us to take the price tag that was in the shoe to the front and show them and my thinking is that the price you see is the price you pay, however in this case we were told the price was wrong by the staff member at the till they then called the store manager Tsepo who came and told me that he could not assist us as it is not his fault that the incorrect price was on the shoe to my surprise I taught that this was schoking that a manager can tell me that, so I called the lady that helped me to find the other shoes and asked if I put the price there or was it there when I saw the shoes which she said was already there. Just the other week at the same store I was behind a customer who had the exact same problem and the same manager gave him a shoes for the price he saw and he paid for him, I then ask myself if he did it for the other customer he should have also done the same for me. So I said to the manage that would you rather lose a customer and not give the good for the price he saw it for and his response was I'm sorry. so I said to him that last week you gave a customer the good for the price they saw now you say you cant assist and he says other situation was different it was only because the customer was making a noise.