5.4.—(1) A proof must—
(a)be made out by, or under the direction of, the creditor and authenticated by the creditor or a person authorised on the creditor’s behalf;
(b)state the creditor’s name and address;
(c)identify the registered provider;
(d)state the total amount of the creditor’s claim (including any value added tax) as at the relevant date, less any payments made after that date in relation to the claim, any deduction under rule 5.20 and any adjustment by way of set-off in accordance with rule 5.24;
(e)state whether or not the claim includes any outstanding uncapitalised interest;
(f)contain particulars of how and when the debt was incurred;
(g)contain particulars of any security held, the date on which it was given and the value which the creditor puts on it;
(h)provide details of any reservation of title in relation to goods to which the debt refers;
(i)provide details of any document by reference to which the debt can be substantiated;
(j)be dated and authenticated; and
(k)state the name, postal address and authority of the person authenticating the proof (if someone other than the creditor).
(2) Where sub-paragraph (i) applies the document need not be delivered with the proof unless the housing administrator has requested it.
(3) The housing administrator may call for the creditor to produce any document or other evidence which the housing administrator considers is necessary to substantiate the whole or part of any claim.