Dear: K.Wanna
Thank you for you information
as I know that when we issue DN of May the system already lock!
Right now you already unlock it.
We're understood that you try to reduce number of D/N as we issuing end of month
with avoid overdue and setup this rule,
but it must be better pls kindly give some comment form operations staff (billing)
also you can setup the meeting by video conference to clearly explains with Q&A
for new rule you will start from next month right?
Anyway please consider about this
Thank you in advance.
Best regards,
Thawatchai