Most cam sites will pay you 80% or more on sales made by users you bring on the site yourself as an affiliate. The fee for billers is 10% or more anyway. It can also make sense for you to use a cam site as an affiliate and bring the guys there as your referral and then get 80% or more. Some sites got a 100% offer at times or limited to certain cases, this is even better than any biller anyway. Note that for European customers, if company billing is European, Epoch can bill on Paypal legally, just not on USA guys.
For example, talking of the company I work for, we can give 82% on chatgf.com for members you bring, as a model take a look to models registration page on
ChatGF :: Information
PS: Be careful with Zombaio, they're reported as late or no paying, search for Zombaio here to read more.