Hello msnezhoda,
We definitely understand how you feel about your order's status. I'm sorry that one of our team mates suggested that we can promise when the device will be delivered. When we look at the order, we can see if the device is on back order or not, but that status can change any time. We definitely want you to have the device and will encourage you to check your order's status online for updates: https://secure-checkout.t-mobile.com/webapp/wcs/stores/servlet/TMCcoOrderStatusLookupForm?langId=-1&storeId=10551