Abstract: The invention relates to a method for providing a system that is operated by a first party, with position information from a mobile unit provided with a unique identity that belongs to a second party. The first party provides a service that is dependent of the position of the mobile unit, and the second party activates the use of the service. The method comprises the steps to send a signal from the mobile unit via a communication network, when the second party activates the use of the service, to a toll number associated with a certain charge, the signal comprises information regarding the identity of the mobile unit and position indication provided by the communication network, and to debit said charge from an account connected to the mobile unit and said second party. The invention also relates to a mobile unit and a system.