Poor service

It is the first time ever woolworths disappointed me like this, I ordered a cake for a birthday on Monday expecting a delivery Wednesday only to receive an email that their delivering only juices as their out of stock for cake. This is so unprofessional as atleast I should have been notified yesterday that the cake is out of stock, I honestly also don't understand why my order went through successfully meanwhile on the day of delivery no stock. I paid for the order now am told the money is on hold and will only clear into my account within 7 to 14 working days, I don't have any other funds it's my sister's birthday we don't have a cake. The main reason I was ordering was for the cake now they want to deliver juices only I want to cancel the order and now for that it's another 3 to 5 working days