Usage of a.m. (A.m. sizes are normally available from stock)

[Ei.jaa]

Hi,
I’m just curious what means a.m. in the following sentences:
1.
“Please let us know by return email message, whether you would like to
make use of either the one or other of the a.m. options”.
2.
“Price: 22,09.- € / m² ./. 8 % special discount
A.m. sizes are normally available from stock”.

thanks in advance for your answers

[Sahid59]

…

Is this a forum for quizzes and puzzles…?

…

[Gray]

@Ei.jaa

“Please let us know by return email message, whether you would like to
make use of either the one or other of the a.m. options”.
2.
“Price: 22,09.- € / m² ./. 8 % special discount
A.m. sizes are normally available from stock”.

After searching a lot, I could decipher it to – a.m. = above mentioned