My Flower Tree — complaints on my flower tree-: not maintaining the delivery time and also not refunding the money

I had ordered a cake on 1st october 18 for 2nd october 18 and paid the cake delivery charges-rs.799 online. As mentioned in their site delivery time will be between 8am to 12 pm but at 11am on the delivery date, when i called them for delivery status they told me they can only deliver the cake by late evening. So i asked them to cancel the order as there is no meaning of sending any gift/cake to the birthday girl as they are going out of the city at 1pm. So i asked my flower tree to refund the money back in my account. But as per them they cannot cancel the order and if the same got cancelled they will refund the money on their wallet only. When i am not satisfied with their service why should i order again. I want my money back