You might have to correct me here if i'm wrong...... To get promoted to a new Tier, you need to tick all the boxes...
Play the required amount of Ranked stroke play games...
Shoot scores under your current average to pass the required Average needed to get promoted.
Levels has nothing to do with getting promoted. Levels are only there by playing enough total games to get 'XP' points... to purchase different things in the Pro shop...etc.
Now saying that... It might be a good idea that Levels should be included, to get promoted too, because... all Alt shot, M/Play, Skins or Practice games are not included in the mix to get promoted to a higher Tier.
Now, getting back to the OP's point... I have heaps of problems... getting booted from a game..losing balls... etc, but most of time they are my stupid mistakes or my puter is overloaded...lol
I must admit though there is still a few bugs in the system, some of them very hard to find and fix. I suppose it's like trying to find your ball in heavy rough (in real golf) sometimes you have to step on it to find it.
Cheers
Roger