It really doesn’t matter if you are given the print out.
The police would probable say you were offered it and declined, and a copy of it was probably with the paperwork you are served at court if you had disputed it.
Even if it did matter, appeals have to be lodged within 21 days of conviction.... and as you pleaded guilty you could only appeal against the sentence, not the conviction.
you.
You need to look forward rather than dwell on what might or might not have happened on the day.