Epoch and CCbill are not 3d secure, that I know of. Some cam program (including our) got 3d secure support in own merchant, but, may have Epoch ot others as secondary biller, so you never know what transactions will be 3d secure or not.
Also note, that 3d secure does not stop the chargeback. What it happens, the user chargebacks - then the merchant "represent" the sale, and after some week, it may be (not always - it also depends if it is business or personal card etc.) that chargeback it is reversed. As an affiliate, I do not think 3d secure support it changes much.
It more matters if promo tools are false advertising or not
