Long residence 10 year over stay issue

[sajidjalali]

Hi,
Its long story I tell you in short, Home office issue me visa send my passport wrong adress in 2010 by the time Its came to my knowldge my visa expired, Then Home office ask me to make new application, I made flr O which they refuse and issue a overstayer letter I went on appeal and then they withdrawn overstayer and give me visa.
I am goning to apply Ilr 10 year route; what should i fill in form overstayer or not which its effect my 10 years . Its not my fault they accept there mistake. Any adivice from experys please
Thanks

[sajidjalali]

I did not et any reply can any one guide me

[Casa]

Apply for a Subject Access Request (SAR) to find out what information the Home Office hold regarding your immigration history.

https://www.gov.uk/government/publicati ... mmigration