What if I've completed my articleship hrs before last day?

Hi, I am working with a Big-four and according to calculations I've completed the required no. of hours of articleship ie. (3yrs * 52 weeks * 35 hrs) = 5460 hrs almost 8 months before my due date of ending the articlechip as per regulaions. What can I do now? My principal does not want to agree to this, but I have his certified expense statements which shows my work timings and from there it can be concluded I've done my requisite hours.

Kindly advise!