So in that other topic you made, some of the posters tried explaining that “bronze 5” has ‘lower’ ranks below bronze 5, and it indicates people are that low by awarding lower points when they win games. (ie, if the point loss is less than 200 points, then players consider that ‘wood league’ below bronze.)
If you’re getting 5 points instead of 25, then you’ve dropped another ‘rank’ below what you were before. Placement matches, the first 3 matches of a season, shift points higher than regular matches do. So between where you ended last season, and how your placements went, you may have lost enough points to be yet another rung below “bronze 5”. Call it ‘bronze 8’ or ‘bronze 10’ if that makes more sense to you.
I don’t know enough of your circumstances to say if that’s based from temporary points (eg. players can lose points by leaving draft) or if you are now ‘hard stuck’ and need to convince the game you’re better than it rates by winning some consecutive games.