I previously overstayed as a visitor in the UK for 2 years and 7 months. I returned to my home country voluntarily at my own expense. i stayed out of the UK for 1 year and 11 months. i dont have an overstayer stamp on my passport. i applied for university in the UK and got accepted. There isnt a question about overstaying on a visa application so do i state the overstay on my own or answer only what is asked?