I submitted paper application in the Karachi visa office, and I linked it to my online account. Just wanted to know if there is any downside to linking the paper application with my GCkey, as one of my previous two applications was an online one and one was a paper one linked this account, both of which were refused. Also, we just have to link the application, right? No docs have to be submitted online as all docs were submitted on paper, and it's ok if the portal reads 'no forms submitted' and 'no supporting documents submitted', right?