Hi smileyy,
When there is a problem with number of physical residence or the officer is not convinced about it they ask you to fill out residency questioner, if the office didn’t ask you at time of interview probably you are not going to receive a letter to complete this questioner anymore, I’ve seen only once that a letter to submit questioner was sent mailed weeks after interview.
BTW are the stamps in your passport in English? (enter and exit to/from your country), cause usually when the stamps are not in English and officer is not convinced, they ask you to bring a certified translation of all the stamps in your passport.
Vangard