Don't remember getting my first write up...

Ive been written up for attendance many times over the years.....however i''ve always documented the date, and who wrote me up, just so I can keep track of it myself....however, was recently put on a final, and a few months ago, either Feb or March I was given what I though was my first writeup since née system reset everything....however, managers are claiming that In fact my first was back in November, which I don't remember at all happening and I don't have written down either....is there a way I can check somehow if I was told about that first writeup? Or the chance the manager just put it in computer without actually meeting with me?