Disappointed Woolworths customer

I came back to SA in September 2022. I usually buy from the Woolworths app, in particular Woolworths Dash. There are often times when a product is unavailable at the time of ordering or there is only one item available instead of the ordered amount. This is never conveyed at the time of placing orders. The full payment is always deducted from my bank account. On arrival an item or a few items aren’t included due to unavailability. This is acceptable but what is unacceptable is the fact that I have never been refunded for these missing items even though I have paid for them. I call this *****ing. The other thing that shocked me, was that I bought 500g pitted prunes and on opening the packet, it was full of mould. I could have gotten food poisoning. I was refunded the full price and given fresh prunes when I physically returned it. How can Woolworths sell these mouldy prunes in the first instance? Isn’t there any quality control anymore?