I visited the UK 10 times in my life and never overstayed. On the 11th journey to the UK in 2016, I was arrested because I overstayed 15 days.
I was sure that I was not in breach of the UK law because there are two notations on the visa sticker. The first one says visa granted from:.../.../.... to .../.../.... and the second says validity of the stay: 180 days.
In my honest understanding, I was convinced that the countdown started from the date of entry and not from the date of issuance of the visa. Hence my mistake, but it was made in good faith.
By the way, I made 10 trips before without ever breaking any rule or British law. When I was arrested, I was 58 years old. I did not intend to stay in the UK illegally when I was very young, why would I do so at 58 years old? It's nonsense! I am 60 years old today.
Is there a chance to revoke a ban, if any, and, if so, how? What should I do or say, whom do I contact?