I want my full refund for the order I never received

Ordered on the 9th of September, expected delivery date was on the 13th of September however the courier decided to deliver a day before (12th of September) therefore could not reach me and did not look at the delivery instructions with alternative numbers. I have been emailing shop@woolworths nonstop and calling to rearrange delivery however It was not successful..then I requested a refund and now on the website it is written that the order has been delivered and that is not true. I want my full refund