Woolies Call centre manager thinks he works for the Bhai

I placed an order today, for delivery today between 16h00 and 18h00. The charge was an exorbitant R70, but I was quite willing to pay it because it would be delivered today. All the items I ordered were for a very specific meal. After 18h00 I had still not received my order. Upon calling the Woolworths call centre, I was advised that my groceries were returned because they had an incorrect number for me so they couldn't reach me. This after I had been called on a correct number multiple times over the last few weeks with their deliveries. I insisted that my R70 be credited, as it was only the fee for a same-day delivery, which would have taken place had they not had a "technical error" with my phone number. The manager in the call centre feels that a refund of my R70 is not due to me even though it's an internal "technical error". So basically my planned meal can't be consumed and I am being penalised for woolworths' technical error.