Well, so far as speaking about playing 4 matches without any level up, here is what happened to me:
Got very nice SPP grinding during the first 3 matches, having 5-6 player on the 4-5 SPP mark, but none with a level-up but only one, the first, a blitzer. Got a stat increase, took movement.
Started my 4th match having the perspective that finally would get some level-up, playing VS Chaos (minotaur, one warrior and a bunch horned beasts). Results:
My level 2 7 mov blitzer got killed on a block by a beast, i.e. death > apo > death.
A second blitzer got also killed on a missed GFI roll.
The only advantage is that my team is worth a lot less now...
And oh, no other level up.
:-(