13. Subject to paragraph 34, £5 of any charitable payment or of any voluntary payment made or due to be made (whether or not so made) at regular intervals other than a payment which is made by a person for the maintenance of any member of his family or his former partner or of his children or a payment to which paragraph 35 applies; and, for the purposes of this paragraph, where a number of such charitable or voluntary payments fall to be taken into account in any one week they shall be treated as though they were one such payment.