Bad Advertising by Pick n Pay

What a pity Store Managers take little notice of instructions given by Pick n Pay customer Care. I was taken for a ride on 28 September and complained to Customer Care on the same day. I received an email on 30 September saying that the store would contact me. I am still waiting for this to happen. I bought a so called 2 x 400 grams of strawberries on 28 September for a so called price of R50.00. On getting home I noticed that I was charged R78,98 an overcharge of R28.98. Was this a catch, hoping that customers would not check their slips or was this a genuine pricing error or system error. It's very easy to blame the system. I have now waited 7 days and nothing has transpired. This is not good enough. I have a Checkers Store within walking distance from my home, so why should I use Pick Pay? Their stores need a revamp as well.