Increased contracted hours at Whiddon

I work at an aged care facility run by The Whiddon Group. I am part- time but have been working over my hours for some time. Can I have my contracted hours varied to reflect this? 

Clause 14.2 of The Whiddon Group Agreement 2017 entitles a permanent part-time employee to request a review of their guaranteed minimum number of hours of work on one occasion each financial year, where they are regularly working more than their guaranteed minimum number of hours. Whiddon must give reasonable consideration to the request, although covering shifts due to staff being on leave or one-off additional hours due to a temporary increase in care would not be generally taken into account. Any increase in hours agreed to must be recorded in writing.