If you sent it in for repairs and it came back "worse" than how you got it, just call and complain and they'll fix it. All repair jobs come with a short warranty on the repair, so you could accuse them of introducing a new problem while fixing the old problem.
Heck, I got my DS repaired for broken L/R buttons and the screen wouldn't turn on. I went back to the repair center the next day and they fixed it while I waited.








