I’m not surprised at all. It is absurdly expensive and on top of that the phone has not reached the functional parity of flip-phone from 2005. On top of that anyone who is not in USA has to pay import tax on that already absurd price tag. And then there is the possibility that the local network provider will outright reject the device. Just like in your case. So you can see why there is almost no interest in it.
On the other hand Steamdeck is selling so well it is out of stock most of the time.