Help! Made a mistake with APH and Leapforce

So here's the deal. I applied for Leapforce MONTHS ago, and applied for the projects I qualified for, and they took months to get back to me. So I gave up, and applied to Lionbridge and APH. APH got back to me immediately, and I went through all the training modules and such to get a $200/week job rating stuff on Facebook. I'm due to start. However. LeapForce finally got its act together and as I was finishing the training modules for APH, LeapForce set me up to start working- something that pays $13.50 an hour, but I can only work 7 hours a week. Boo, but not bad side money especially when paired with the $200/week thing above. However I did NOT realize they use the same rating tool, at NO point did they say in any application process that I CAN'T work for the other companies, they just asked if I had prior experience in search engine work. So now I'm stressed- I read LeapForce doesn't care if you work with others, APH does and will fire you... but I'd rather $200 a week for sure, than $94/week... but I'm not sure how to approach them about it without being insta-fired for working with another company, and then somehow in the clusterfuck, end up jobless all around. Because I'd quit LeapForce for APH if I have to in a heart beat, but man, I'm worried about approaching them all about it.

What should I do? Anyone have any advice or experince working with both Leapforce and Appen?