【More・・・】
I am apologetic for you.
I feel apologetic for the little one. I know how difficult this situation can be. I kindly request, receive my heartfelt apologies.
I am regretful for the little one. I know how difficult this situation can be. I kindly request, take my heartfelt condolences. I deeply am saddened the upset brought about. I'm hoping that the little one will excuse me.