They've also got a consumer site oriented towards foreigners - aliexpress.com
Besides the long shipping times (1-2 months to my door), it's been more reliable than shopping locally.
Is that common for all sellers or was it the item you ordered.
That said, I live in a country in the European periphery, so you might get better luck if you live in the US.
http://www.aliexpress.com/item/in-stock-2014-New-model-Lenov...
Then some googling revealed that there is no such device as a "Lenovo S7000 5.0 inch Tablet".
Still aways to go, I think.