It can be 8 years at most (from July 2006 1 to July 2003 1 only 7 years).
However, at the same time, it is necessary to submit the Registration Form of the Borrower after graduation to the school within one month after leaving school, and the school will provide the effective contact information of the borrower to the bank.
Pay off the principal and interest at the latest two years after graduation.
Your current situation is still all in line with the regulations, and there is no extension.
But the most important thing is that you didn't submit the borrower's post-graduation registration form.
So your first step now is to find the school to submit the "Registration Form for Borrowers after Graduation" and leave your contact information.
Explain to the school the willingness to repay in advance and let the bank contact you.
Repaying the student loan in advance only needs to calculate the actual interest.