This agreement between [Sender.Company] (“Agency”) and [Client.Company] (“Customer”) is a legally binding agreement. The Agency undertakes to provide the advertising services described above against payment to the client, in accordance with the terms of this agreement. B. For positions for which the Agency is not compensated on the basis of commissions, the advertiser shall pay the Agency on an hourly basis for the services provided under this Agreement. The tariff shall depend on the nature of the services provided and the person or persons providing those services, but in no case may the rate exceed the [maximum hourly rate] per hour. The advertiser can choose in advance whether he is charged on this hourly rate basis. If the advertiser does not inform the agency of his choice, it is considered that the advertiser has chosen to be debited at an hourly rate. . .