EEA FP Application - Previous Non-UK visa overstay issue

[andromedae]

Hi!

I will be applying for the EEA Family Permit as a Macedonian National married to an EEA National with dual citizenship (Bulgarian and Macedonian) who is currently exercising his treaty rights with employment in the UK (he's been working there since 01/2016).

I have been reading this forum for quite some time and I helped me a lot with completing my EEA Family Permit apllication and supporting documents, but I got kind of "stuck" on one of the questions in the travel history section, to be more specific, the question is the following:

6.6 Have you ever been deported, removed or otherwise required to leave any country, including the UK in the last 10 years?

In 09/2007, when I was applying for studies in Sofia, Bulgaria, I was issued with Short-term visa valid for 3 months which I overstayed for 6 days because of some kind of a misunderstanding (my father asked someone at the Bulgarian border, I assume border police employee, whether I can stay in Bulgaria after my visa expire, in case I needed more time to complete my University enrollment, so the employee told him that I can overstay for maximum 1 week). On exit, as you can imagine, I had problem at the Bulgarian border because of my expired visa. They let me go after they did some paperwork there, but they didn't told me anything about me being fined, deported or banned from the country, so I thought I was ok.
After I returned to Macedonia, I applied for Bulgarian Long-term visa (Student visa), which was issued to me without any problems, so I was pretty surprised when I was refused entry at the Bulgarian border because of the previous visa overstay situation. The situation resolved quickly, I just had to pay 250 EU fine at the border and I was free to go. This problem didn't have any negative effect on my stay in Bulgaria as a student or applying for Bulgarian Residence Card Permit in the following 6 years, so I believe it was not such a big mistake and not something that will put a black mark on my immigration record.

So, I was wondering, concerning the abovementioned question, should I:
1. Answer "NO" and don't mention this situation, since it happened almost 10 years ago and it might not be relevant.
2. Answer "NO", since I wasn't deported or removed from the country, but explain about this situation in Part 9:Additional information.
3. Answer "Yes" and provide details in section 6.6.

If I choose one of the responses under number 2 or 3, will this overstaying issue cast in a negative light on my visa application or in any way lead to refusal?

Sorry for the long post, I couldn't fit my question in a few lines. Hope someone of you can help me, because this issue has been bothering me a lot.

Thank you very much in advance!