Can I extend the coverage warranty for another 12 months? (Shopee - Cracked Screen Protection)

No, there is no extension of the coverage warranty. It is only for 12 months from the purchase date.

Bolehkah saya melanjutkan tempoh jaminan perlindungan selama 12 bulan lagi?

Tidak, tiada tempoh penangguhan selepas tarikh aktivasi. Ia berkuat kuasa dengan serta-merta.