Wrong number! Wrong number!

I've forgotten the actual time and date. Saved this in the draft section where Blogger conveniently 'forgot' the info.

Phone rang

Caller: Hello, can I speak to Ms. Yati?
Me: I'm sorry, she is no longer here. And this is a wrong number.
Caller: Can I speak to Ms. Hui?
Me: She's no longer here too. And this is a wrong number.
Caller: Is this HELP College?
Me: Er... erm... yes, this was HELP College a hundred years ago, now its a house and this is you calling a wrong number.

Caller: Huh? ...... Ok, ok. Thanks.
Me: .....

(So tempted to shout 'GOTCHA!' instead)