Test Card — Sandbox Payment Testing Cards for Developers and QA

Our Cards

Choose from any of our gift cards to give to your loved ones

giftcardimage

Where to Use?

Redeem your gift cards at any of our Merchants

Where to Buy?

You can purchase a gift card from any of these locations

ABOUT US

about

What is ONYX GiftCards?

Onyx Gift Cards is a Grenadian company designed to introduce, market and manage gift cards systems in Grenada for retailers and corporations. We are enthusiastic about the effect and influence we will have on the local market. We intend to expand our systems regionally with a range of product offerings and services.

What is a Gift Card?

Gift cards are the preferred way of giving and receiving gifts. They carry a monetary value that can be redeemed for gifts at your favorite store.
Onyx GiftCards are “Open Gift Cards” which means that they can be redeemed at multiple merchant locations. They are standard credit card size, can fit into the average wallet and made of PVC plastic. Onyx GiftCards are Barcoded for security and safety for the consumer and bear a disclaimer at the back.
Onyx Giftcards can be bought with a branded Card backer which is black in colour and is designed to fit the card. There is an area to write a brief message to the recipient as well.

How it Works?

  • Buy an Onyx Gift Card at these local stores
  • Give your gift card to friends, family, co-workers, etc.
  • The recipient can shop at our select merchants nationwide
  • Your friends, family, co-workers, etc. will present their gift card at checkout to pay for your item(s)
  • They will walk away happy with the best gift ever...the gift of Choice

Why ONYX GiftCards?

  • Save TIME. No need to run around looking for the perfect gift
  • Redeem from a variety of business island-wide. We will continue adding businesses as fast as ONYX grows.
  • ONYX Gift Cards do not expire
  • Cards are valued at convinient amounts to meet every need and occasion

A test card lets you exercise a payment flow end to end without moving real money. This pack is built for developers, QA teams and support staff who need to reproduce approvals, declines and edge cases on demand — in sandbox gateways, on countertop terminals and on contactless readers. Every card carries a fixed, documented behaviour, so your results stay repeatable from one test run to the next.

Key Features

Materials and Specifications

Each card is printed on 30 mil PVC in the standard CR80 form factor — the same stock used for production payment cards — so it seats correctly in chip readers, swipe slots and terminal feeders. The cards are encoded with sandbox-only data and labelled on the reverse with the scenario name and the response code you should expect. The set ships in a rigid sleeve with a laminated quick-reference card, and the printing is wipe-clean for daily handling.

How is a test card different from a real card?

It is not linked to any bank account, balance or cardholder. It only produces predictable responses inside a testing environment, so no funds can ever move.

Who should use a test card?

Anyone building or supporting a payment flow: developers wiring up checkout code, QA engineers running regression suites, and support teams reproducing a decline a customer reported.

Will it work with every gateway?

The set follows widely used sandbox conventions, but always check your provider's documentation first — some gateways require their own published test values.

Shipping and Returns

Orders leave the warehouse within one business day, and tracking is emailed as soon as the parcel is scanned. If the set does not suit your workflow, return it unused in its original sleeve within 30 days for a full refund — no restocking charge and no questions asked.

Contact Us

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