Hi,
On your screenshot, I can see that you're using the "beanstream" payment plugin, not the "bambora" payment plugin.
So either you gave the wrong screenshot, or you're not using the correct payment plugin.
Now, if you were using the incorrect payment plugin, you should normally not even be able to access the payment page of the payment gateway. So you wouldn't be asking us about the payment notification to the website. So I suppose that you just gave a wrong screenshot.
Please activate the "debug" setting of the payment method and do a test again.
Then, you'll have data added to the "payment log file" under the Files section of the Main tab of the HikaShop configuration.
It will provide crutial information on what's going with the payment notification.
Also, if you have the "instant capture" setting turned off in the bambora payment method, the payments will appear on your bambora merchant account, but you'll have to manually validate them before bambora will send the payment notification to your website, which will then validate the order.