Taman-Gated & Guarded Fee

Hello, My neighborhood is not a Strata Title property but has been gated and guarded since the developer's time. When the warranty period from the developer ended, we established a Committee and hired a Management Company (MC). A monthly fee of RM120 was introduced in 2016, which has remained unchanged to date. The fee is allocated to cover expenses such as the Management Company, security services, maintenance of the pocket park, and pest control. However, some residents are reluctant to pay, arguing that:

1. The property is not under Strata Title.
2. Maintenance should be handled by the local council (Majlis).
3. There was no agreement for such fees during the Sale and Purchase (S&P) process.

How can we address and manage such residents effectively?