Where creditor is blind or incapable of writing
26.  The proxy of a creditor who is blind or incapable of writing may be accepted for a meeting of creditors if —
(a)the creditor has placed the creditor’s mark upon or signed it in the presence of a witness;
(b)the witness has added the signature, description and residence of the witness to the creditor’s mark or signature;
(c)all insertions in the proxy are in the handwriting of the witness; and
(d)the witness has certified at the foot of the proxy that all the insertions were made by the witness at the creditor’s request and in the presence of the creditor before the creditor attached the creditor’s mark or signature.