Its something I am yet to come across. I'm at level 19 now - and looking at some of the teams in my negotiation lists and cup runs it looks like I've got a few levels left at least until I hit the top of my server.

It does feel like you need to have a bit of luck on what server you were put in originally. I think I am on server 4 - which has been great for me. I never got the new market, always get tons of great players available to buy (scout list is often naff, bar this season when it was decent), and seem to have lots of level teams on it. I've seen level 25 and level 26 teams in my cups/negotiations list so far this season, so I am hopefully I have a few more seasons to go before I encounter bumping up problems.

I'm also yet to play the same team more than twice in a row in the league - and most I come across each season seem to be new teams - so that makes me think my server has a lot more teams to go on it until I hit the top of it.