This may be state-specific and you should check the instructions for filing. In New Mexico they tell us to list the names and addresses of both the remitter and the payee, specifying each. Since in some/most cases you won't know the payee's address you would put 'unknown', but we certainly have the address of the remitter as we sell only to customers.
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I hear and I forget. I see and I remember. I do and I understand.--Confucius