In 2005 I've applied for student visa in UK emabssy's of Iran, but I got rejected. In 2008 I needed a transit visa to land in UK, becuase my flight from Armenia-US was through London. I applied for the visa but in the application I mentioned that I've not rejected before. In that time I though student visa and transit visa are diffrent and I answered no. Embassy rejected my transit visa and on top of that handed me that I'll not be able to get visa from any embassies for 10 years. In that time I was holding iranian passport. Now, I'm a US citizen and I have US passport. I'm flying to Armenia through London. My family lives in London and I've 10 hours stop in the airport. Does that ban that was applying to my Iranian passport still valid for my current status?