WorldPay Callback Failure HTTP status: 302

[duxnrunz]

Hi,

I'm currently trying to instal the WorldPay mod kindly supplied by duncanad but I'm having a problem. I go through the checkout process to the worldpay site it all goes through and I don't get redirected back to the shop and i get a Callback Failure. The email to notify me of this reads:

=====================================================
Our systems have detected that your callback has failed.

This callback failure means we were unable to pass information
to your server about the following transaction:

Transaction ID: 175674327
Cart ID: 48a04f644f########437ad980499d1f28f2
Installation ID: 133393

Error reported: Callback to http://www.domain.co.uk/shop/index.p...980499d1f28f2: NOT OK, recevied HTTP status: 302
Server Reference: mggaeq4a:callbackFailureEmail-2163289:MerchReq-560

======================================================

Looking at the WorldPay FAQ is says

The requested resource has moved to a new URL as specified in the returned Location: header. Redirection is not permitted. Please see What should I be aware of if I wish to display a customised page to shoppers as a response to a callback? for more information.


When I copy and paste the URL from the callback failure email into the browser it has the calback page saying your order has been canceled

Has anyone got any ideas as to what's wrong?

Thanks