Legalization of Prostitution:
A prostitute running a billboard? Wow, I haven’t laughed so long ago.
I think of the transmission:
D51 K62 The payment for the service "Minet" was made under the contract No. 348-SOS of 28.11.2012 for the amount of 1500 rubles.

And the invoice? The act?
See also 1C: Prostitution