Your Surfe subscription must be paid for in its entirety with all licenses being paid for in one payment (and this same curency). It is not possible to pay individually for each user. When getting started with Surfe, you will choose how many licenses you would like to have available for your team. Each license can be used by one user and provides one seat on the account, which has access to all of the Surfe features in your plan.
Following the on-screen prompts, you will then be asked to provide billing information and make the payment for the number of licenses in the plan that you chose.