I didn't put two thousand by mistake

[user_gary]

A : I owe the car to you.

B : Yes, A, that's what's worrying me.

A : Worrying you, A?

B : Yes. That cheque I gave you for your wedding present -- it was only two hundred pounds, wasn't it? I - I didn't put two thousand by mistake?

Could you explain what the `B' mean the highlighed words/phrases?

[Casiopea]

A : I owe the car to you.

B : Yes, A, that's what's worrying me.

A : Worrying you, A?

B : Yes. That cheque I gave you for your wedding present -- it was only two hundred pounds, wasn't it? I - I didn't put two thousand by mistake?

A bought an expensive car. B wonders how A could have afforded it. B recalls giving A a cheque for 200 pounds, which isn't enough to buy an expensive car. So, do A's words I owe the car to you mean that B paid for the car; that B's cheque had an extra 0, making it 2,000 pounds, not 200? B questions that.

Does that help?

[user_gary]

Does that help?

Yes I got it.

Thank you Casiopea

[Casiopea]

You're most welcome.