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Engineering Support Desk • Anuradhapura & Colombo

Let's Connect & Power Your
Online E-Commerce Profits

Have questions about setting up Koombiyo, PromptX, Trans Express APIs, thermal barcode printing, or merchant plans? Chat directly with SMARTZONE LK engineers.

WhatsApp Helplines

Fastest response for demos, API setups, and merchant queries.

Direct Phone Line

Mon - Sat: 8:30 AM – 9:00 PM (Emergency WhatsApp 24/7)

Official Email

Dedicated inboxes for billing, receipts & integrations.

Physical Headquarters

Engineered & Operated by SMARTZONE LK.

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Frequently Asked Questions

Common queries regarding onboarding, courier accounts, and thermal printing.

Instant! Registration takes less than 60 seconds. You receive a fully unrestricted 10-day free trial immediately with zero setup fees or credit card requirements.
Yes. You can plug in your existing merchant credentials for Koombiyo, PromptX, Trans Express, Fardar, etc. All COD payments collected by couriers deposit directly into your personal bank account.
CodFlow natively generates standard 4x6" (100x150mm) high-contrast thermal labels compatible with Xprinter (XP-420B, XP-460B), Zebra, Phomemo, Rongta, and standard A4 laser/inkjet printers.
Our main engineering headquarters is based in Anuradhapura, North Central Province, with server routing operations in Colombo, Sri Lanka. You can reach our hotlines at 078 68000 86 or 078 65000 90.