Deductions allowed.
18. A guardian shall, unless the Court otherwise directs, be allowed on the audit of his accounts deductions made on account of his remuneration and other allowances that may be approved by the Court and also on account of the fees paid by him under these Rules, but shall not be allowed any other deduction, unless the deduction is authorized by the Court in pursuance of the Law or these Rules, or the Court is satisfied that the deduction is justified by the strict necessity of the case.