"Sales" Getting tracked into "Mobile downloads"?

Hi guys,

I've been into Mobile downloads and been using hasoffer for tracking.

However, I encountered something.. kinda great.

I have 1 campaigns - X which includes 2 programmes:
1) Cost per sale and cost per download

Initially when I started off with download campaign, I was delivering 4000 downloads a day (with a unique tracking link different from sale link).

In this scenario, my "sales" and "downloads" count was 900 and 4000 respectively.

However, recently, it seems that the affiliates who are delivering downloads are also giving out huge sales volume as well.

I want to know how is this possible all of a sudden? Assuming nothing has changed at my end.

What has the advertiser changed at their end which is causing sales to increase to 10000 a day instead of just 900?

your leads convert well for them and they bumped your EPC, it's a good thing

it's just their way of saying - w/o actually saying it - that we like your traffic, do you have MOAR?