reasonably and necessarily incurred shall be determined by the Commissioner. (3) In the case of a disabled person who has suffered an injury which consists of an aggravation to a material extent of pre-existing ill-health, physical or mental incapacity or personal injury, the Commissioner may authorize payment of all or part of the expenses referred to in subsection (l) as he considers equitable in the circumstances of the particular case. 13 Vocational training (1) In this section— “vocational training” includes any form of education or training which, in the opinion of the Commissioner, will permit a disabled person to support himself and his dependants or will increase his capacity to do so. (2) If— (a) a disabled person has applied therefor; or (b) the Commissioner considers it to be desirable; the Commissioner may investigate any case of a disabled person to determine whether or not that disabled person should receive vocational training in a hospital or elsewhere. (3) If the Commissioner considers that a disabled person should, in consequence of his disablement, receive vocational training in a hospital or elsewhere, he may order the disabled person to undergo such training and may award him, in addition to any other benefits to which he is entitled under this Act, a temporary allowance in respect of the period during which he undergoes such training at a rate not exceeding the rate of pension which would have been paid to him under paragraph (b) of subsection (1) of section eight had his degree of disablement been one hundred per centum. (4) A temporary allowance awarded in terms of subsection (3) shall be paid for such period and subject to such conditions and deductions in respect of the earnings of the disabled person while he is undergoing vocational training, as the Commissioner may determine. (5) The Commissioner may grant to a disabled person a refund of the whole or any part of the charges, fees or expenses incurred by him in respect of the vocational training, subject to such conditions as the Commissioner may determine. (6) At the termination of any period of vocational training undergone in terms of this section, the Commissioner may grant to the disabled person such sum as the Commissioner considers to be reasonable for the purchase of tools or other equipment required by him in the vocation for which he has been trained. (7) If a disabled person refuses to undergo any vocational training ordered under this section, the Commissioner may reduce or withdraw any disablement pension payable to him under this Act. 14 Benefits for financial loss Where a disabled person sustains a financial loss as a result of undergoing a medical examination or treatment in a hospital or otherwise on account of his disability, the Commissioner may, if the disabled person— (a) is in receipt of a disablement pension, increase his pension; (b) is not in receipt of a disablement pension, award him such pension as the Commissioner considers equitable: Provided that any disablement pension increased in terms of paragraph (a) or awarded in terms of paragraph (b) shall not exceed the disablement pension that would have been payable under paragraph (b) of subsection (1) of section eight had the degree of disablement of the disabled person been one hundred per centum for any period during which the disabled person undergoes the examination or treatment or while travelling in connection therewith. 15 Constant attendance allowance Where— (a) the injury of a disabled person is of a serious nature; and (b) the Commissioner is satisfied that the disability of the person referred