Gym Leaders from Black/White

Okay, so the other siku I was playing Pokemon HeartGold, and a few weeks back, I had left my Mantine and my Kangaskhan at the Pokemon Daycare right below Goldenrod City. I had wanted to level them up so I could have them to help me beat the Elite Four. I called the Daycare Center on my PokeGear and they say both of my Pokemon had leveled up 29 levels. So I figured they were at about level 50 kwa that point. So I went to get them, and found out that it would be around $6000 to get them back. I didn't have that much at the time, since I had bought a motherload of Max Potions and Revives. So I thought,...