John's wording is correct. If a customer made two $12,000 deposits at the same time your CTR would be for $24,000, but there would be no $24,000 deposit.
Checking "multiple deposits" at the top of the form and in section B is possible in a variety of circumstances. Sometimes you check one, sometimes the other, sometimes both and sometimes neither.
There are a number of scenarios where a third party cannot verify the accuracy of the CTR. However, if there are multiple deposits and one or more of them is for less than $10,000 there is a distinct possibility that the teller was not on notice that it was necessary to obtain identification.
You might want to review some of these questions with the person who does the training on CTR completion in your bank.
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