What may this be?

For some reason every time I call my boyfriend it says Verizon restricted my call almost like it’s block but it’s not. I called him on a random number that I wouldn’t be blocked on so idk what’s wrong because it also said the thing about restrictions. He’s just not opening my snaps either so idk what’s going on. We’ve talked everyday for like three years and I haven’t heard from him in four days and we are never like this. We talk 24/7 and I’m just worried. I’m 16 btw 😕

So what would this mean?