Maybe someone will need to confirm as I am not 100% sure myself, but surely if an FTTC service is ceased on a line then the free capacity on the cabinet goes to the next person on the waiting list? If that is the case, then you will have to wait until the capacity is improved (either with an additional cabinet or add-on upgrade) or if someone else ceases their FTTC service. In theory, they could just jumper the connection and enable the new property with FTTC, but this would totally disobey the wholesale system and orders which have been in backlog for the service.