A Trusted Service Manager for retrieving data, the TSM being able to: - receive at least one installation request (INST) from at least one Service Provider (SPx) via a first communication channel, the installation request (INST) comprising an application (APPx); - transmit the application (APPx), via a second communication channel, to a target mobile communication device (MOx), the target mobile communication device being equipped with a memory device to store the application (APPx); characterized in that, the installation request (INST) further comprising a Service Provider identifier (SPx-ID) of the at least one Service Provider (SPx) and a unique identifier (MOx-ID) of a target mobile communication device (MOx), the Trusted Service Manager is adapted to: - keep a repository of information related to the at least one received application (APPx), at least one associated service provider identifier (SPx-ID) and at least one associated target mobile communication device identifier (MOx-ID); - receive at least one query from a Mobile Network Operator, via a third communication channel, the at least one query asking for the at least one Service Provider associated with a specific mobile communication device identifier (MOx-ID); and - process the at least one query by retrieving from the repository at least one Service Provider (SPx) that is associated with the queried mobile communication device identifier (MOx-ID). - receive at least one installation request (INST) from at least one Service Provider (SPx) via a first communication channel, the installation request (INST) comprising an application (APPx); - transmit the application (APPx), via a second communication channel, to a target mobile communication device (MOx), the target mobile communication device being equipped with a memory device to store the application (APPx); characterized in that, the installation request (INST) further comprising a Service Provider identifier (SPx-ID) of the at least one Service Provider (SPx) and a unique identifier (MOx-ID) of a target mobile communication device (MOx), the Trusted Service Manager is adapted to: - keep a repository of information related to the at least one received application (APPx), at least one associated service provider identifier (SPx-ID) and at least one associated target mobile communication device identifier (MOx-ID); - receive at least one query from a Mobile Network Operator, via a third communication channel, the at least one query asking for the at least one Service Provider associated with a specific mobile communication device identifier (MOx-ID); and - process the at least one query by retrieving from the repository at least one Service Provider (SPx) that is associated with the queried mobile communication device identifier (MOx-ID). - keep a repository of information related to the at least one received application (APPx), at least one associated service provider identifier (SPx-ID) and at least one associated target mobile communication device identifier (MOx-ID); - receive at least one query from a Mobile Network Operator, via a third communication channel, the at least one query asking for the at least one Service Provider associated with a specific mobile communication device identifier (MOx-ID); and - process the at least one query by retrieving from the repository at least one Service Provider (SPx) that is associated with the queried mobile communication device identifier (MOx-ID).