Bertha Nambela
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Customer Relations & Administrative Operations Specialist
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Results-oriented and detail-driven Business Administration professional with over 6 years of progressive experience in customer relations, revenue collection, financial reconciliation, and front-office administration within the utility and public service sectors. Proven track record at Chambeshi Water Supply and Sanitation Company in boosting customer satisfaction, resolving billing disputes, managing operational databases, and maintaining zero-deficit cash handling integrity. Adept at cross-departmental coordination, management reporting, and compliance with statutory and corporate governance standards.
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Contact Info
Email: nambelabertha5@gmail.com
Phone: +260 975 130 156 / +260 967 978 910
Work Experience
Customer Relations Assistant Officer
Chambeshi Water Supply and Sanitation Company Limited | 2025 - 2026
Serve as the primary liaison for commercial, domestic, and institutional clients, managing escalations, high-value inquiries, and technical service requests.
Maintain and audit digital customer records and account ledgers, ensuring 100% data integrity across operational billing databases.
Compile and deliver comprehensive weekly and monthly operational performance reports to the District Manager to support data-informed decision-making.
Coordinate with field technical teams, billing officers, and distribution engineers to expedite leak repairs, service reconnections, and meter dispute investigations.
Championed service delivery turnaround initiatives, reducing customer grievance resolution cycle times.
Cashier
Chambeshi Water Supply and Sanitation Company Limited | 2021 - 2025
Managed front-desk revenue collection, processing daily cash, electronic funds transfers (EFT), and mobile money transactions with zero recorded balance variances.
Conducted end-of-day financial balancing, register balancing, and daily banking reconciliations in adherence to company financial policies and internal control systems.
Prepared comprehensive daily and monthly revenue returns, cash inflow summaries, and deposit slips for the Finance and Accounts Department.
Addressed client account discrepancies, investigated misallocated payments, and advised clients on payment plans and account regularization.
Upheld strict compliance with financial security standards, anti-fraud controls, and audit guidelines.
Customer Service Assistant Officer
Chambeshi Water Supply and Sanitation Company Limited | 2019 – 2020
Managed high-volume front-office reception and client desk operations, attending to walk-in clients and telephone inquiries.
Reorganized physical and electronic customer filing registries, enhancing file retrieval speed and inter-departmental documentation workflows.
Assisted supervisory personnel with administrative drafting, official correspondence, meeting minutes, and logistical support.
Logged and tracked service complaints to ensure swift follow-up and high client retention ratings.
Education History
University of Lusaka (UNILUS) | Graduated: 2024
Bachelor of Business Administration (BBA)
Evelyn Hone College of Applied Arts & Commerce | Graduated: 2017
Diploma in Business Administration
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