IN RE YENDI SKIN AFFAIRS; ANDANI v. ABUDULAI Practice and procedure—Appeal—Supreme Court, to—Statement of case of appellant—Mandatory obligation to file statement of case based on grounds of appeal within three weeks of notification of record of appeal being ready under rule 13 (1) of CI 13 of 1970—Appeal to be struck out on failure to state case under rule 13 (2)— Obligation arising only when appellant notified in mode laid down in rule 12 (1)—Effect of notice of service of Form 5 referred to in rule 12(1)—Rule 13 (1) and (2) inapplicable unless rule 12 complied with—Three weeks period in rule 13 (1) to be calculated from date of official notification of record of appeal being ready—Supreme Court Rules 1970 (CI 13), rr.12 (1) and (2) and 13 (1) and (2).