X1C international warranty

[ddx]

I want to buy a x1c but prices in europe are 200euro+ for basic i5 models.
So I had a look on ebay and found some i5 models (34442HU) for around 1400 dollar, but when contacting the sellers they have no idea what kind of warranty is included.

I also found an i7 model (344425U) with description :
Genuine Lenovo Worldwide Warranty 3 Year Depot (International Warranty Support - Model Type 3444)

When I fill in 3444 on http://support.lenovo.com/en_US/product ... e/iws.page I get a list of phone numbers.
How do i make sure I'm ordering a x1c with international warranty ?
(and is it possible to upgrade this somewhere to onsite?)

[loyukfai]

Can you ask them for the serial no. as well...? You can then check the warranty status at http://support.lenovo.com/en_US/product ... fault.page?

Cheers.