Error when payment processing using Realex

I am working on payment processing using Realex with GWT

But at the last step it gives me following error message

Using test system. Please u开发者_如何学运维se pre-approved test cards ONLY

Please help me.

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Your account is in test mode so you must use test credit card numbers. These are provided by Realex.

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Most payment processors i've seen use one of two approaches:

• Have a "test mode" setting in the account, and a "test mode" variable in the gateway, and only consider the charge live if neither one indicates test mode. (IIRC authorize.net works like this) OR
• Have different URLs for test vs live charges. (I'm thinking Paypal works like this...at least their IPN stuff does.)

Make sure you're using a "live" url, and that the account itself is not set for test mode.

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You can find Realex's test card numbers here. Make sure you only use the test cards in test mode, pointing at the sandbox address - https://api.sandbox.realexpayments.com/epage-remote.cgi