. Handle customer enquiries via email, phone, and other channels . Liaise directly with customers for scheduling of aircon servicing and installation appointments . Handle customer enquiries and provide clear, confident explanations on service details, warranty coverage, and billing . Coordinate daily job schedules with the operations and technician teams . Issue invoices, payment receipts, and follow up on outstanding balances . Assist in processing warranty claims, ensuring timely and professional resolutions . Manage feedback or complaints with a calm, proactive attitude . Support admin tasks such as preparing service reports, quotations, and warranty documents Other ad-hoc duties as assigned