Anyway, I got it, but it isn't 3.1 MBPs (yet). It's in Hybrid mode, I'm supposed to change it to the actual speed after 48h (that's because we have to go through the activation and formalities BS.)
Now it's 84KBPS dll speed.
It is unlimited, but once I download more than 5GB, the speed goes down from 3.1MBPS to 250 KBPS, I've never seen that much speed in my life either.
For now, I'm sticking to my old one, because it's comparatively better than the new one, for now.