As with all devices that aren't widely used in this country, there's very little support info around. I've mentioned before that anyone who gets one of these devices working is likely to find themselves the resident expert here!
The main thing to check is the operating frequencies (which I assume @grolschuk did). However, even when a device works on the network, people have had trouble getting the data access points (APNs) to work properly, even when entered manually. There's no obvious reason or fix for this, sadly.
Generally speaking, you're on your own, I'm afraid (I don't mean that unkindly, it's just a fact). If the device works, brilliant. If not, you'd just have to hope you can sell it on at not too much of a loss.
