Look at the note below. You will hear a conversation about a payment. To find out what went wrong with the last【C5】______. It se

A: Mm, but what we’ve got to do is find out what went wrong with the last payment.
B: Er... now... er... I’ve been looking at the file for CKs and it seems as though we were billing them for two batches of T140s last month instead of one.
A: Well, this may be how the misunderstanding arose...
B: Well, yes, exactly. That could be how the... er... the 532 figure came up. Now look, what I suggest is that we send them a new invoice with the batch next month and simply deduct the extra amount from the total...