Why at IC Markets when there is a big profit it's actually cheated?

Hello Master, I am a victim of the IC Markets broker. Every day I make a profit of 5000 USD. When I make a profit of 50-100 USD, there is no problem. But when I use large lots and consistently earn 5000 USD - 10000 USD per day, problems start to arise. My account was destroyed by IC Markets. For those who defend IC Markets because you use lot 0.01 with small profits, I trade with 5-10 lots.