I'm not an expert on immigration problems but I am pretty sure they would have told you if anything were wrong. In my case, I provided the FBI report, as requested (I am U.S.) and when they got it, for some reason they then wanted Interpol. So then it was necessary to order Interpol. But they told me right away. If it is approved and they told you that you can expect your DNI, then I say relax and don't worry. I was supposed to get my latest DNI in two months and it took over four. Nothing was wrong. That's just how it was. We are, after all, in Argentina!