医療証明書の日付変更

Change the date '29/6/26' to '15/9/26'. Change 'al 1/7/26' to 'al 18/9/26'. Change 'los 29 días del mes 6 del ano 2026' to 'los 15 días del mes 9 del ano 2026'. Keep the exact same handwriting style, do not change any other text.