I didn't (quite) catch that
Please repeat what you said; I didn't or couldn't hear you. A: "Do you need anything from the shop?" B: "What? I didn't quite catch that—the oven fan was too loud."
I didn't (quite) catch that (last) remark
Please repeat what you said; I didn't or couldn't hear you. A: "Do you need anything from the shop?" B: "What? I didn't quite catch that last remark—the oven fan was too loud."
I didn't get that
Please repeat what you said; I didn't or couldn't hear you. A: "Do you need anything from the shop?" B: "Sorry, I didn't get that—the oven fan was too loud. What did you say?"
I didn't catch your name
I didn't hear your name. Typically prompts the listener to repeat their name. A: "Sorry, I didn't catch your name." B: "I'm Joe. Nice to meet you."