Dear responsible,
I want to inform you that I have been uploaded my test results, but due to I am not satisfied with my scores I registered for another test in Jun, and I am sure my next scores definitely would be better.
Best regards,


"Dear responsible" sounds great (I love it) but isn't appropriate in this context.

Dear Admissions Staff,

I uploaded my test results, but as I am not satisfied by my scores, I registered to take the test in June.

I am certain that my next scores will be better.

Best regards,

Applicant name




Dear Jack,

I really appreciate your help. Thank you.