Subject to sub-paragraphs (2) and (3) below, a statement indicating the description and amount of any other payments and charges which may be payable under the transaction advertised.

Where the liability of the debtor to make any payment cannot be ascertained at the date the advertisement is published, a statement indicating the description of the payment in question and the circumstances in which the liability to make it will arise.

Sub-paragraphs (1) and (2) above do not apply to any charge payable under the transaction to the creditor or any other person on his behalf upon failure by the debtor or a relative of his to do or refrain from doing anything which he is required to do or refrain from doing, as the case may be.