8.1(3). For services which are performed by third companies in the context of preparing or running an event and do not represent third party services within the meaning of  the paragraph above, but represent in-house services, the liability of Pro+Motion GmbH will be limited to assigning its claims against these third companies/administering agencies to the contract partner/participant and referring the contract partner/participant to the direct assertion of these claims against the third company/administering agency. Only if the contract partner/participant is unable to realise these claims against third parties will Pro+Motion GmbH’s liability remain as provided for within the framework of these terms and conditions.