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Dhen Harold CristobalDC
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Dhen Harold Cristobal

@dhenharoldcristobal

Customer Service Representative at AliveCor Kardia, resolving order and shipping issues using Zendesk, Shopify, and BigCommerce.

Philippines
Message

At AliveCor Kardia, I support customers with order tracking, returns, delivery concerns, and product inquiries. I use Zendesk, Shopify, and BigCommerce to verify orders and coordinate with logistics and fulfillment teams on shipment issues.

At TTEC Philippines - Verizon and Teleperformance, I provided technical and customer support, resolving device, service, billing, and account concerns. I also handled service orders and account updates.

At American Express Global Business Travel, I supported VIP and corporate travelers with travel arrangements and itinerary changes. Earlier, at Kohl's Card Services, I assisted customers with credit card payments, account inquiries, and billing resolution.

Experience

Work history, roles, and key accomplishments

AK
Current

Customer Service Representative

AliveCor Kardia

Jun 2026 - Present (4 months)

Provided customer support through Zendesk email, ticketing, and case management platforms. Assisted with order tracking, shipping updates, returns, and product inquiries, coordinating with logistics teams to resolve shipment issues.

TV

Technical Support & Customer Service Representative

TTEC Philippines - Verizon

May 2025 - May 2026 (1 year)

Provided technical support for Verizon mobile devices, services, and network-related concerns. Resolved billing, order management, activation, upgrade, and account maintenance inquiries while meeting customer satisfaction and sales metrics.

AT

Corporate Travel Consultant

American Express Global Business Travel

Sep 2023 - Apr 2025 (1 year 7 months)

Supported VIP and corporate travelers with international and domestic business travel arrangements, managing flights, hotels, car rentals, and rail reservations. Handled schedule changes, cancellations, and emergency travel requests with white-glove service.

TE

Technical Support & Customer Service Representative

Teleperformance

Dec 2021 - Aug 2023 (1 year 8 months)

Supported Triple Play services including Internet, TV, and Phone products, resolving technical issues, account concerns, billing questions, and service interruptions. Managed service orders, account updates, upgrades, and customer retention activities.

KS

Collections & Customer Account Specialist

Kohl's Card Services

Sep 2018 - Oct 2021 (3 years 1 month)

Served as the primary contact for credit card billing, payments, and account inquiries. Assisted customers with payment arrangements, balance concerns, and billing resolution.

Education

Degrees, certifications, and relevant coursework

SC

St. Clare College of Caloocan

Senior High School Diploma, General Studies

2016 - 2018

Completed Senior High School Diploma at St. Clare College of Caloocan from 2016 to 2018.

Tech stack

Software and tools used professionally

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