Bad service at PNP

I terrible disappointed in Pick N Pay online app. I have used it many times before and was happy with their service until about 3 weeks ago when I ordered items I needed made the payment but up to this day have not received them. I have contacted their customer service, I have sent numerous emails to try and get it sorted and since last week I have received no response from them, not even a follow up or an apology for such a long delay in sorting out a small problem. I find it very frustrating and very unprofessional as well as lacking in customer service. On top of that I was at the branch in Newton Park for an item that was on special with my family, we got the item with signs all above and below it showing the special clearly only to get to the till and be told sorry that is not the correct item that was shown on special even though it was. When we pointed out that there was the special signs show that it is the item in question the manager by the name of Cyrill went to go quickly remove it and said that there was no sign. He was rude and unpleasant and not at all helpful. Really disappointed at their service both in store and on their app