【正确答案】 B

【答案解析】[听力原文] W: Well, Mr. Smith, I've looked into your invoice and found out why it hasn't been paid. M: Why? W: We asked our bank to transfer the money but they couldn't. They said that your bank details were wrong. So they couldn't transfer the money then. M: What do you mean by 'my bank details were wrong'? They are printed on our invoice. I think that you received the same invoice as all our other customers. But we did receive the money from the other customers. W: I'm sorry. What did you say? M: I said our bank details were printed on the invoice. W: Well, I have the invoice here. Can we just check? The account number is 21406881. Is that right? M: Yes, that's right. And what about the name of the bank? W: At the Bank of Scotland at 46 Portland Street in... M: Hold on, did you say Bank of Scotland? W: Yes. What's the matter? M: It is the Royal Bank of Scotland, not the Bank of Scotland. W: You mean there are two different banks? M: Exactly. W: OK, Mr. Smith. I'll ask our bank to transfer the amount to the Royal Bank of Scotland as soon as it opens. I'm sorry about the mistake. M: Well, I'm glad we sort it out. What can we know about the invoice from the speakers?