4.—(1) Where the agreement was made prior to 19th May 1985 and on that date (or at the end of an accounting period not exceeding one month during which that date falls) there is no debit or credit balance standing on the account under the agreement, the first statement to be given in pursuance of these Regulations shall relate to a period starting from a date on or before the first movement in the account on or after 19th May 1985.
(2) Where the agreement was made prior to 19th May 1985 and on that date (or at the end of an accounting period not exceeding one month during which that date falls) there is a debit or a credit balance standing on the account under the agreement, the first statement to be given in pursuance of these Regulations shall relate to a period starting from—
(a)the end of the period to which the last previous statement in writing related, being a statement which was given by the creditor to the debtor and showed (according to the information to which it was then practicable for the creditor to refer) the state of the account at that time; or
(b)a date on or before the date of the first movement in the account following the end of the period to which the last previous statement in writing related; or
(c)if there has been a movement in the account during the period of twelve months immediately preceding 19th May 1985, a date on or before the date of the first such movement; or
(d)if there has been no such movement in the account, a date not less than twelve months before 19th May 1985.