Man hätte dein Anliegen so auf jeden Fall verstanden.
Hier mein Vorschlag:
"I was already registered for the ... Diploma Course last year. But it was a problem for me to follow the course. It is especially difficult in the months when I am in India, because there I don't have access to the internet most of the time.
Would it be possible to continue the course in the next year?
When you will start with the ... course?
Kind regards, ... "
