maybe table rate is mistake.
after test and calculte rate.(Tier 3)
I got only $0.6/1000DL every file size becuz i can't sell premium account.

The rates above are the maximum that you can get. Your actual payout rate will be calculated on a daily basis and it will take into account the quality of traffic that you bring and also the number of premium sales made from your downloads.
All rates are per 1,000 downloads.
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