Hi,
It's potentially a problem with the quickpay plugin. Either it doesn't support that, or it's not configured properly, or there is something else on your server preventing that from working.
It's a common issue even for payment plugins like PayPal and not because of the plugin itself but because of the way it is configured, or because of things blocking on the server. We've made a documentation for PayPal but you can apply most of it to any payment plugin (supposing that they support payment notifications):
www.hikashop.com/support/documentation/i...or.html#notification