Horrible customer service

Went to purchase Refuse bags for my company,waited in express line for more than 15mins as there was only 1cashier . Then at the till the refuse bags scanned R60.99 and not R39.90 as per the shelf label. The cashier to then called a staff member called Lindiwe. She came to the till,no greeting,no eye contact. She asked the lady packing what is the issue was,the lady explained that the prices on the shelf are incorrect. Lindiwe then turned around and walked away with refuse bags with no communication or explanation as to what the resolution is. I went to the help desk/information desk and explained what happened. The people at the desk then proceeded to call Lindiwe, she approached the desk with a manager who then brought me cheaper refuse bags ,which was an insult because that was not what I wanted. The manager then said he's still bargaining with me to assist me. I decided not purchase anything due to that. According to basic customer service standards,the price you see is the price you pay because it was the store's error. I will however in future not support Pick n pay Hypermarket Brackenfell store, bad customer service.