Same sort of thing showed up on my online banking statement on 12/25 as a pending charge on 12/24 of $39.91 from Ewc Payments Pty Ltd . I waited until it went from pending to cleared (12/27) and at that time it changed to a charge of $39.91 from acsmedia3.com plus a $1.20 fee (also listed as acsmedia3.com but categorized by the bank as a "foreign transaction fee"). It turns out that acsmedia3 is a porn website operation & the $39.91 was for some membership that I did not order. The bank (BofA) is disputing it for me, and requested that I call acsmedia3.com (they have a one page site with a customer service #) and I "cancelled" this supposed membership so that there will be no more charges. In addition the original credit card # has been closed so that makes it doubly tough for anymore charges to come through.
Bottom line though: I'm pretty sure that Ewc Payments Pty Ltd is strictly a card processor. The name DID change when it went from pending to cleared. Take it up with your bank, and also try to contact the original (supposed) vendor. And it goes without saying (or doesn't it?): Cancel The Compromised Credit Card! Good Luck!