Absolutely Shocking service with Online purchases, call centre agents rude and do not give a damn

I ordered an item online for my daughters birthday. It was indicated that the item would be delivered on the 21st January, by daughters birthday being on the 30th January. I ordered and paid for the item under the assumption that it would be received in good time. Zara has now indicated that the item will be delivered on the 31st January. I have contacted them via their "online chat" and I was basically told tough luck for me and I have to just wait. When asking if I could contact a manager, I was told that they only have the online chat option and no managers. I asked to cancel the order or collect in store, and they have said that it is not possible. The service is appalling.