Card Testing Guidelines for Merchants and Risk Teams

Our Cards

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

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Where to Use?

Redeem your gift cards at any of our Merchants

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Where to Buy?

You can purchase a gift card from any of these locations

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ABOUT US

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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

Card testing guidelines: the short answer

Card testing guidelines are rules and checks that help you spot and stop fraudsters who use stolen card numbers to make small purchases. The goal is to see if the card works before they try a bigger fraud. If you run an online store, these guidelines protect your revenue and your reputation.

Why card testing hurts

When a fraudster tests cards on your site, you get hit with authorization requests, chargebacks, and processor fees. Too many bad transactions can raise your risk score. That can lead to higher fees or even a frozen account. The damage adds up fast.

Signs of card testing

I watch for a few common signals. A sudden spike in small orders. Many failed attempts from one IP address. Multiple cards used with the same billing address. Orders that ship to a different country than the card was issued. These patterns do not happen by accident.

Guidelines to stop card testing

  1. Turn on CVV and AVS checks. Require both for every transaction.
  2. Set velocity limits. Block more than a few attempts from one IP or device in a short window.
  3. Use a fraud tool that scores each order. Look for tools that flag mismatched data.
  4. Block known bad IPs and proxies. Many card testers use VPNs or data center IPs.
  5. Add a CAPTCHA or a small human check on checkout. That slows automated scripts.

Guidelines for ongoing monitoring

Review your decline rates each week. Look for clusters of small authorizations. Talk to your payment processor about their card testing rules. They see patterns across many merchants. Ask for their recommendations. Adjust your limits as your sales volume changes. What works in January may not work in July.

These guidelines are not a one-time setup. Card testers change tactics. So should you. Keep an eye on your logs, and act on odd patterns fast.

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