Yeah I'm getting that now ... Only started battle grounds last week dabbled odd game every month before
But been doing g the daily everyday for a week and always got in a game from the start so assumed it was my placement in my team that awarded me
I'm mainly using battle grounds to try improve my abilities for cyrodil my thinking is if I can build a BG build that can survive and kill then CP cyrodil I'll have a better build
Pro-tip; there's a few variations of the BG dailies so just abandon the one you find hardest to achiever such as 3 wins then go to another BG daily quest giver and they may give you one of the easier ones such as 1k medals or participate in 5 rounds.
The 1K score is the fastest and easiest one to do. And you can drop and pick up the quest over and over until you get it. Then you don't have to win, or play multiple matches, just earn 1K score and you have your tickets.
And depending on your build, you can choose a game mode that best fits your need. Tanky? Join the Capture games. DPS, just queue directly for Deathmatch or random. Healer, choose random, you will pretty much always be a help to any team you land on in any game mode.