阅读下面对话，在空白处填入恰当的内容。

A: Can I help you?

B: Yes, please. I want to my mobile phone.

A: What's wrong?

B: The screen went black last night.

A: Did you have , like dropping it on the ground, or into water?

B: No.

A: Well, then the repairman will help to open it up and check the inside.

B: ?

A: It depends. Have you got the receipt (发票)?

B: Yes. Here you are.

A: OK. You bought it from us on July 9, only a few days ago. Then you won't have to pay for the repair.

B: I see. When can I ?

A: I'm not sure. We will give you a call as soon as it's fixed. Your name, please?

B: Thomas Tarshis, that is T-A-R-S-H-I-S.

A: ?

B: 627935.

A: 627935. OK, that's it.