Woolies Dash failure

I placed an order on Woolies dash and it was cancelled because the driver said I was unavailable (called a number I haven't used in over 10 years and have changed countless times) When I called the helpline, I spoke to an operator who was extremely rude and dismissive, put me on hold for over 10 minutes and then hung up on me. All I want is a refund. I've emailed and their turn around time is atrocious as I still have not yet received a response nor have I received my refund. Even when items are unavailable, they do not refund that amount. Disgusting honestly