Originally Posted by
sama
Did you have a personal passport or you were in your parent´s passport?
If you were in your parent´s, you can always try to get the stamps from theirs.
If it was personal, it´s strange that they didn´t stamp it.
Yes.. I have seen many unreadable stamps, and also readable stamps but set to wrong date (France...). But foreigner not getting stamped several times at Schengen boarder. Strange.
You didn't provide another passport or Schengen country ID at the time?
Side note, how old can you be and still be in your parent's passport?