BaP - when will i get the option to ask for a trade which will be accepted?

When will i have the chance to ask for a trade in the "Be a Pro - Career" which will be accepted?

Play this section in the game the first time. Now after playing a couple of games (first season - 40 games played) i had 2 possibilities yet and one open possible chat with GM but both before were denied by the GM).

So when will i get the chance? Anybody of you have a feedback for me please?