POOR SERVICE WITH BAD ATTITUDE AT CLICKS MALVERN PARK

I bought the pay 2 for 3 deals, after cashed i saw the prices displayed on the shelf and what i paid was more. i enquired and the manager advised the prices went up and they had forgotten to change to new prices but will give me items at the prices i seen. i noticed the new prices went up quite a bit so i told the manger i will take a second set and the manger refused. the manager said now that she knows she cannot give it to me , so i told her but the price tag shows the old price they removed it and said well not anymore. Also, a staff member took my bank card from to go show her manager WITHOUT MY PERMISSION, i had to literally run behind her.