Article 54U.K.
The place of the supply of services by an intermediary, acting in the name and on behalf of another person, where the intermediary takes part in the supply of services consisting in activities ancillary to the intra-Community transport of goods, shall be the place where the ancillary activities are physically carried out.
However, where the customer of the services supplied by the intermediary is identified for VAT purposes in a Member State other than that within the territory of which the ancillary activities are physically carried out, the place of supply of services by the intermediary shall be deemed to be within the territory of the Member State which issued the customer with the VAT identification number under which the service was rendered to him.