To what level an acceptance given via email exchange and agreement to writing the LOPA can be reliable ?

Hi everyone,

I'm currently in the final stages of my MEXT scholarship application and need some advice regarding the Letter of Provisional Acceptance (LOPA) process.

After a few email exchanges and some requested changes to my research proposal, a professor informed me that the adaptations were "enough for now" and accepted me. He mentioned that he would start writing the LOPA. This was two weeks ago.

On the 10th day, I sent a follow-up email to check if there was anything I could do to help with the process and to see if the LOPA was progressing smoothly. The professor's reply left me feeling insecure about the outcome. He simply replied, "Would you please send me your CV?"

This request seems strange to me since all my personal information should already be available at the Admission Assistance Office (Kyoto's AAO). With the application deadline approaching, I'm getting anxious about the situation.

Has anyone else experienced something similar? Is it normal for professors to ask for the CV, even if all relevant info's already with the AAO? Should I be worried about the initial acceptance being reconsidered?
Last but not least, should I keep trying to follow-up and insist on bringing the subject of the LOPA to the table?

Any advice or personal experiences would be greatly appreciated!

Thank you!