Washers on push button taps keeps on failing.

Bought push button taps for our school. The washers keep on failing and leave the taps running. Reported it to Eston and Fuaad. They sent out their own Plumber to check out the issue. Fortunately, it happened while he was here. The start was reported on 25 March 2025 already. To date, Plumblink has only made promises and no repairs at all. POOR SERVICE DELIVERY AND AFTER SALES SERVICE.