I received mine about 3 weeks ago. It was the same for me as you describe, got an email with "we are about to ship your device you will receive notification fr

I received mine about 3 weeks ago. It was the same for me as you describe, got an email with "we are about to ship your device you will receive notification from DHL" or something similar. Then it took another 2 weeks or so, and I received a notification directly from DHL that my device will arrive in 4 or 5 days (I think it came even faster like 2-3 days). Anyway, I wouldn't be worried, it seems after that initial notification you are only notified once the tablet it's already on its way.