Zando disappoints

I am very dissatisfied with Zando. I ordered 2 Items on Black Friday and got a mail saying one of the big sale items was out of stock and they send me a voucher. With that voucher I ordered another 2 items and got another mail a week later saying one of the items are out of stock. When I ordered , all items where listed in stock. It's frustrating because, I planned this for Christmas and delivery is being delayed everytime and I'm not getting what I ordered! I'm done with Zando! Will not buy from there again. I also deleted the App!