✅ At your beck and call

- always having to be ready to obey someone's orders immediately.
- a phrase indicating one's compliance or obedience.

❗️Do not confuse the word "beck" with "back".

📝 At the best hotels, there is always someone at your beck and call.
📝 In fact, your crew will be at your beck and call.
📝 You expect everyone to be at your beck and call, and you tend to act violently when they don't.