I'd also be interested to know which agency you use.

The one major annoyance I have with CCBill is their efforts on fighting chargebacks is apparently nonexistent. We offered to send them data with logs, IPs and info that traced back to the specific user who claimed he'd never, ever accessed the site, even though his "never accessed" and initial questions about accessing the site were the same IP. We were told they had their "own way" of fighting chargebacks which seemed curious... without any evidence to fight the chargeback, it obviously isn't going to be successful.

And our TOS says that anyone who initiates a chargeback without first contacting us to arrange a refund will incur a $100 charge. Don't know if it would hold up in court, but it's been very successful in scaring potential chargeback scammers from doing a chargeback.

So yes, I'd love info on agencies.