Was I just ****med and ****** by OneCart?

On 25 July 2024 I ordered groceries (23 items) from Woolworths Garden Centre including perishable dairy items. My shopper finished shopping quickly and the groceries were packed waiting for delivery. The time for delivery came and went and the app's delivery status stopped working. The hours kept ticking by and no-one from OneCart contacted me. When I was able to get through to them on the phone (not an easy feat) I was told there were no drivers. I messaged to say that I no longer wanted the groceries as the items might've gone off by the time they got to me. When a "driver" eventually came with the groceries it was 3 hours later and I asked that it be sent back, that my money be refunded so that I could do a new shop with fresh items. The driver said they understood and would return it. The driver was a woman with a blue PacSave T-shirt. Many emails, phone calls and WhatsApps later - OneCart has still not refunded me and the groceries have all but disappeared. I called Woolworths Gardens Centre and its manager says that no groceries were returned to their store on the 25th nor the next day (today) by OneCart. I have received no responses to my emails and messages. The Customer service consultants (when I'm able to get through) say that my money will be returned to my OneCart Wallet but it still hasn't.