Why did I got banned?

[Martijnc]

You are banned for moneycheating.

[18:42] *Nuwani:%#LVP.Echo* *** Large cash increase: Belthazor (ID:22)'s money from $501726 to $1052484!
[18:42] *Nuweni:%#LVP.Echo* *** Large cash increase: Belthazor (ID:22)'s money from $1052484 to $1400357!
[18:43] *Nuwini:%#LVP.Echo* *** Large cash increase: Belthazor (ID:22)'s money from $1400457 to $1562502!
[18:43] *Nuwani:%#LVP.Echo* *** Large cash increase: Belthazor (ID:22)'s money from $1352699 to $1729541!

Can you explain this money increases?