(13)A client providing indirect clearing services should present the indirect client with a choice of account structures. It is however possible that an indirect client has not instructed a client of its choice within a reasonable period of time. In that case, that client should be able to provide indirect clearing services to that indirect client by using any account structure, provided that the client informs the indirect client of the account structure used, the risks associated to that account and its level of segregation, and the possibility to change the account structure at any time.