at the beck and call of

マオリの意地なのでしょうか。

Maori king refuses Duke and Duchess of Cambridge meeting

King Tuheitia said the 90 minutes he was allocated with the royals was not enough to do justice to their status.

His office also said the king was "not some carnival act to be rolled out at the beck and call of anyone".

Kensington Palace said the tour would include several events "to recognise the significance of Maori culture".

William and Catherine were due to meet King Tuheitia - who ascended to the Maori throne in 2006 - at his official residence, Turangawaewae, on the country's North Island.

But a statement from his office said that while he had "agonised" over the decision, the monarch was not prepared to meet the royal couple for only 90 minutes.

http://www.bbc.com/news/uk-26435942

at the/sb's beck and call ofは、beckが「合図、お辞儀」、callが「命令、呼びかけ」なので併せて、「人の言いなりになって.（人）の指示のままに」という意味です。（Shou-VR*）