Megapush + lospollos , My attempt ( failed ) advice needed

Hi everyone, today i tried Megapush + lospollos dating offer.

tracker : bemob

Results are here
clicks delivered = 3 390
Cost = 59.3 $ still going on
Leads = 4
Revenue = 1.426$
ROI = -97.089

After researching alot i made a campaign to run with them.
What went wrong ? well, megapush had no control over the caps i set, they taken 20X of what i have set as cap.
they delivered in 1000s , i don't know if this happens with all the network but this was a learning for me from megapush.

even i'm thinking why the conversion is very less ?

I'm looking for advice on how to solve this problem maybe ? or advice on good ad network ?

thats the ROI i was looking for ever in my life

I tried this with Adsense haven't got succeed yet

The CPA is complex, you have to try a lot to win.