Looking for advice: Slow response from Malaysian international school admissions?

Hi everyone, I'm a 16-year-old Korean student trying to apply for a small international school in Malaysia for Year 10 this August. I sent all required documents last week and followed up politely, but haven’t received any response in days, even after they read my message.

Is this kind of delay common in Malaysia? Should I be worried or just wait longer?

I’m really serious about this application and I’m just feeling a little lost. Any advice or shared experiences would really help. Thanks!