Unable to withdraw

I deposited 50,000 and said that I could get a bonus, and then said that the increase of 50,000 was finished, and I was entitled to an increase of 300,000. After sending it to me, I could not withdraw. I asked the customer service and said that I need to deposit 300 grands. I deposited 300,000, but I still can’t withdraw cash, and it said that my credit score is insufficient, and asked me to buy credit points, 20 thousand one point, I’m 4 points short, and then I have to deposit it on the same day. If I don’t deposit, my credit point will be reduced every day. It's a trap. scam