If I read this right:

You want to recieve beats, so you can use them for your tv-work.
if those beats are used, AND they end up on tv, you are willing to share 50% of the writers share (and something says to me, that you get more then just writers share, but thats just a hunch/uneducated guess).

And all we have to do, for this great deal… is make 25 beats… pay you 500$ to listen to them. and if you dont use them… you get money back… but if you use them in some cue/tune which you show to the tv people, which they not choose to use… u used them. so you dont give a refund, but i will never get my 50% share of the writers-share. but you will have the 500$, cause you “did” something with the beat…

No offence, but… this sounds like a terrible deal… what part am i reading wrong?