I am pretty sure that if there is only one transaction you have to use the address where the transaction took place.
When there are multiple transactions you can list any of them, but it should still be where one of the transactions took place.
From the Form 104 instructions:
"Items 38, 40, 41, and 42. Address. Enter the street address, city, state, and ZIP Code of the financial institution where the transaction occurred. If there are multiple transactions, provide information of the office or branch where any one of the transactions has occurred."
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Opinion expressed are my own and not necessarily those of my employer.