For others who are having this problem, I have a solution which worked for me and will hopefully work for you.
I was having the exact same issue when trying to register with goolink.org - when I added the NVR's serial number into the goolink.org website from a PC via a browser (I tried chrome, firefox and IE) it gave the error "Notice:Wrong ID, another one please!". The strange thing was the apple & android apps of goolink worked just fine and I was able to view the cameras on my mobile devices. What did not work was the browser version which would allow me to look at the cameras remotely from my PC.
After reading this thread, I tried returning the NVR to hopefully get one that would work with the PC version of goolink.org. The 2nd one had the same goolink problem.
I was about to give up and just except that the PC version was not going to work, but I decided to try the seller's China support contact. I was very impressed with their support - not only very quick response, but a solution. They sent me an update file for the firmware (I was already running firmware version V4.0[20150124] and hardware version V4.0 for the Super Mini NVR N6200-8E) which was called "goolink_P2P_2015-06-10.update". It was a small fine (only 168KB) which I ran from the NVR's menu "System->Update->Upgrade File" function. I rebooted the NVR, went to goolink.org via a browser on my PC, goolink.org now works. The same NVR which was giving me the error "Notice: Wrong ID, another one please!" now correctly registered and works great! Hope this saves someone some headaches.