Any person who claims to be a creditor of an insolvent estate may register his name and address in the Republic, with the trustee of that estate upon payment to the trustee of a fee of R25. Thereupon the trustee shall send to that address a notice of every meeting of creditors of that estate, a copy of every account which he is submitting to the Master and a notice of the date, time and place of the sale of any property over which the creditor has a preferent right by virtue of a special mortgage, pledge or right of retention or a landlord's tacit or legal hypothec. Failure on the part of the trustee to comply with a provision of this section shall constitute a failure to perform his duties but shall not invalidate anything done under this Act.