Proof!! :P
I think someone stepped in the wrong shoes by accident :P !!
Reason beings...not being rude NickMP3...I don't want my account back or anything, but I will list you some flaws and errors with your system.
Number 1 obvious flaw is...
Free users can download 2000 Mb in 3 days.
That is from the same ip, but if you did not know already people nowadays have dynamic ips which change frequently, so your plan will kind of not work!!
Make money,
Minimum file size is 1 MB
Like I did, I crammed a 27 sec 1mb file in this, when ppl click play file downloads instantly and gets counted for. The user can play 5 seconds but it will count for 1 download in your system.
$30.00 for 10,000 downloads for mp3, maybe too much in my opinion, listening to a short song is easier than watching a 120minute film!! If you notice with the video streaming sites like videobb, They pay $30 for 10,000 views, whilst counting 1 Unique IP view each day. Compared to that and your site, you are going to lose a lot of money, unless you are willing to pay that much for them.
Also to add, members can renew their premium with the money they earnt, and this is what is more likely to happen, for people that upload mp3 songs, they can easily make $4.99 and they will change that to a premium, so you can see a severe loss in premium funds, and free members are really not going to change to premium much as they can download for free anyway at a fast speed !!
Please consider these things and try altering your techniques a bit. It is to help your site settle in for the future.
1 suggestion, try and make your embedded player better, so that the person has to play the full mp3 file duration, and then the point is accounted for.
Also increase minimum file size to compete in earn money from 1mb to lets say 4mb or smting.
It will really help you in growing, honestly giving away your server for free really sounds stupid to me!