Frequently Asked Questions

Frequently Asked Questions

  • I'm getting Invalid Credentials. What do I do?
    Check your Merchant Account ID in your integration is correct. Our Gateway Merchant Account IDs typically begin with 1 and are currently 6 digits long, eg 100001.

  • I'm getting an invalid signature error message. How do I fix it?
    Check that you are using the correct method for calculating the signature and the correct secret signature key for the Merchant Account used. Make sure that you are not using an image form submit button because that will add fields to the post that cannot be removed and will render the signature useless. Refer to appendix A-12 for a step-by-step guide to creating a signature. If you use the same values as in the example, you can check if your signature generation routine produces the same results. This test step by step generator is available from the Gateway at the following address1; (opens in a new tab)

  • I have more than one Merchant Account - how do I use more than one?
    You have a couple of options here. You can set up separate integrations for each Merchant Account, which can be a bit inconvenient. Your other option is to request they are connected together. Please contact our support team to get your Merchant Accounts connected and you will then only need to use one.

  • I receive a 'Bad Testcard Usage' error message. Why?
    If you receive this error message, you are using test cards on a live Merchant Account. Please only use live cards on live Merchant Accounts. Our test cards will only work on the test Merchant Account provided when you sign up with us.