They literally just asked her to wait a day or two. She didn't even wait an hour. She didn't ask any of the dozens of telepaths to give him a ping. They have the Cuckoos stationed all over the world to act as a network for communication! Did no one even think that hey, maybe he's still being tortured by Moon Knight? Or Mephisto? Or any of the dozens of problems that the Avengers have going on? We have been given a ticking clock of three days, but no indication of how much time has passed or is passing. I don't understand this obsession with making Shuri, BP and the queen mother into some kind of shady bastards because they didn't immediately hand over a national treasure when Storm asked, while providing no details on why she wants it besides some vague 'the world is in danger' talk. And then when you factor in the whole 'dignitary or a foreign country that has been acting weirdly from day 1' angle, and its more confusing that they were as nice to her as they were.
We don't even see her try to call BP. We don't have any evidence at all that they are deliberately ignoring her, insulting her or trying to control her. And that's not even getting into how much of a catastrophic loss this is diplomatically. A leader of mutantkind had a romatic relationship with the king of the most technologically advanced nation in the world, on top of being the leader of the Avengers. Krakoa could have literally had a potential claim to the throne of Wakanda in a generation. Now the people there will hate her and distrust Krakoa, and since Krakoa is representing all of mutantkind, all mutants by proxy.