Online/App shopping at Pnp Sandridge

I'm a loyal customer for PnP, have been shopping there for the longest of time and even on their App. I usually buy my groceries on the App, it's convenient and easy for me as I don't like queues. I placed my grocery order around 1;30pm today at PnP Sandridge Midrand and the App usually confirms rough estimates of when the order will arrive. At 3;30 I checked the App and only to see the update the the delivery has been delivered but I didn't get my delivery. I drove to the store and queried that update. I spoke to the floor Manager on duty and she spoke to the ladies that deal with online orders who made contacts with their 3rd party that manages the deliveries after a long wait probably over an hour another customer came through to complain about the same thing. We waited for over 30 minutes for a solution as the managers and online staff were going up and down talking to whoever. Eventually we were informed that the order is cancelled and our moneys are credited into the wallets, the store cannot give us cash and we can request for refunds which will take 48hrs to reflect in our bank accounts.

This process was really frustrating and unprofessional. I lost all hope in Pnp App or online shopping I will delete the App and my profile as this left a bad taste in my mouth

Very disappointed especially because I trusted the store and service