This is interesting since I slightly believe that players who doesn't spend money on MyClub are disadvantaged on purpose. I don't mean by the players they get because you can also build a good team without spending money on the game, but by the game engine. This might sound like a conspiracy theory but such methods are not that uncommon in free-2-play respectively pay-2-win games.
I never spend a dime on the game aside from the purchasing price and how the game treats me sometimes in MyClub is just unreal. I mean I'm not the best player but definitely neither the worst but when it comes to MyClub it's just unbelievable how boosted my opponents very often seem to be.
Are u experiencing something like that on your account without spending money?