Shccking Service - Do Not Use Online Shopping

Used Pick n Pay online shopping for the first time. Booked a delivery slot for today (Tuesday) 10-11am. They left my order at the store.Only delivered at 4.30pm. 4 items were not delivered but I was still charged the same amount on my credit card.Phoned to find out how I am refunded, they tell me that they substituted for more expensive of certain items which brings the amount to the same ie less items for more money. Nomsa @ the cal lcentre has no idea. Spent most of my 30mins call on hold. Then told her they can collect the items & refund me, I was told to contact the store. I refused as my dealing is with pnp online. Put back on hold, transffered to manager, Henry Smit, who cut me off before I could even leave a msg.Was on hold for 15 more minsto Pick n Pay. I cannot believe how revolting your online service is. U show this beautiful video of giving away groceries for free, they weren't free,u made your money back from me. What disgusting service, u should be ashamed of yourselves. On FB they u asked for my details. I have waited 3hrs & need to get my money back so I can do Xmas shopping else where or my family will have no Xmas lunch.