Beyond Pathetic Service

I cant express how upset I am with the pathetic service of Woolworths. I ordered a cake online yesterday afternoon and even paid for it as it is my daughters birthday today and she so loves the cake therefore my order and the convenience of ordering online but what a disaster only to be called this morning by Noktula to say that it is out of stock. She further states that I should remember that they are a walk-in store and how their system works and that the cake was there when I ordered but it got sold after I placed and paid for my order...how am I as a customer supposed to know how Woolworths operational or logistics works? If there was not many in stock the system should state how many are in stock and that the possibility it would be sold out so that I would not have placed the order not after I paid for it and to get this call this morning. I asked to speak to the manager and had to wait for more than 8 minutes until the manager answered. I recorded the entire call. When I asked when will I get my refund Nokutula mentioned that it would take 48hrs but the manager Nonhlanhla said it would take 24hrs. What do I do for a cake today?