66 D. the deposits and charges to be paid in connection with the supply, installation, working by a licensee, maintenance and repair of apparatus and equipment referred to in subparagraph B and generally in connection with the use of telephone and telex services and facilities connected therewith; E. the forfeiture of deposits referred to in subparagraph D and the payment of sums to meet losses in income occasioned by the default of a person to whom apparatus or equipment referred to in subparagraph B is supplied or on whose behalf or request it is installed and to meet the costs of work done for the purpose of installation and like costs when apparatus or equipment supplied to or installed on behalf of or at the request of a person is removed before the expiration of a prescribed period or, as the case may be, is not supplied or installed owing to the default of the person; F. the varying, exclusion or substitution, with the agreement of a person to whom a telephone or a telex service or facilities connected therewith are afforded or by whom such a service or facilities are used, of any provision prescribing a condition or relating to a matter referred to in subparagraphs A to E in respect of the supply to him or the installation, maintenance, working, repair or use of apparatus or equipment by him or on his behalf or at his request; (i) the protection from interference or injury by works and lines for the supply of electricity of telecommunication systems established, maintained or worked by a licensee and by persons authorised in terms of this Act to establish, maintain or work telecommunication systems, and in so doing provide for the varying, exclusion or substitution, with the agreement of a person by whom such works or lines are established or operated, of any regulations providing for the protection of such telecommunication systems from interference or injury which may be applicable to the person; (j) the giving of such access to buildings and the furnishing of such places, facilities and fittings in buildings by the owners of buildings as may be necessary for the purpose of installing, maintaining and repairing apparatus and equipment used or to be used in connection with telecommunication systems within the building; (k) such matters as the Minister may consider appropriate or necessary to give force and effect, within Zimbabwe, to the provisions of the International Telecommunication Constitution and the Constitution of the Universal Postal Union; (l) the classification of radio stations, other than broadcasting stations and radio stations used solely in connection with broadcasting and diffusion services, and in so doing amend the First Schedule or vary the definition of a radio station specified in the First Schedule and prescribe the nature of the radiocommunication services to be carried on therefrom; (m) the inspection and testing by employees of broadcasting stations, licensed radio stations and radio stations and radio and other apparatus used in connection with broadcasting services or systems and for the method of installation, working and maintenance thereof;