Get your pricing right

Went into the store today for 2 automatic toothbrushes for my children and they didnt have any in stock. I then saw 2 others (different brand) for half the price and was very happy because its the last 2. When I got to the till I was told that its not the price I saw. I then took the cashier there and showed her, she called the supervisor who called the manager. After waiting and waiting and waiting the manager appears and told me they cant be held responsible for customers moving stuff. I told her that 1 could be understood but 2??? Yesterday I also had a bad experience where another branch did not know how to use the Vitality Clicks rewards.