Social security agency letter deemed a valid decision; late appeal dismissed due to statutory time limits.

The Supreme Court dismissed the cassation appeal against a lower court's rejection of a late social security appeal. The applicant argued that a 1993 letter from the social security agency was merely an information notice rather than a formal decision, yet the agency had properly notified him of his right to appeal. The court ruled that the letter constituted a valid decision under the relevant regulation because it contained the necessary elements to change benefit amounts and informed the applicant of appeal rights. Consequently, the applicant's failure to appeal within the statutory period rendered the subsequent appeal inadmissible.