[options]

Before I name a reputable merchant, I would like to know your experience with corrected transactions.
This one made about 36% comission corrections in a period of three months regarding 20-25 transactions. The reason is mostly "Invalid Credit Card" and once returned merchandise.
They didn't reply yet to my two e-mails sent almost three weeks ago. CJ's responsibility in protecting publishers is condensed in this reply: "It is within the advertiser's rights to correct transactions as they deem necessary..."!

IMO this ratio is extremely high.

[midPhase-Dan]

That does seem a bit high.

The only acceptable reasons for corrections that I know of are fraud (the credit card
used was stolen,) double order or cancelled order.

And those are rare and far between.
Contact their program manager ;)