Bad service of high note

I have placed an order with Zando it`s now the 7th day and I don`t see progress on my delivery status. They are not answering calls, they are not making an effort too say when will my delivery be here. What a horrible online shopping experience. What upsets me is I ordered this item for an event but the even has passed I couldn't use it. A big inconvenience this was! Zando doesn`t deserve loyal customers if they do not have a good customer service.