You can raise a case for support to confirm the current way the rules are functioning however, it is common for the reason the rules are perceived as being incorrect is due to a internal process change.
Approval rules were added during implementation and based on the requirements given to the Access Consultant. These would also have been signed off before going live. The rules will not change on their own.
Rule changes should be done with great care and first tried in a test system to ensure not other issues are introduced. As a result, it is likely that Support will forward the case to Consultancy to help review the new requirements and required effort.