Bad service, unprofessional supervisor,pricing

Went to game to get a backpack bag. I found a bag and went to pay as I got to the till the lady(name hidden) scanned the bag and the price is not what is the displayed on the rack. I brought it under her attention. I went to fetch the barcode as she didn't believe me. Then she went to see if this is right. I went with her and she showed me that almost the whole rack was priced wrong. Then she proceeded to discuss me with other customers that was standing there in another language as I am standing there. Then she called the supervisor who took forever. The supervisor didn't even greet me or acknowledged that I am standing there. The lady at the till told me that there is no manager on duty and only one supervisor. And I need to understand that the people working with her is not doing their jobs. This was the worst service ever and I am so disgusted in Game and their management. This is super unprofessional.