Well I must say I am actually Surprised at RD for pulling such a "STUNT" honestly.
This further supports the Argument to use a Credit Card, PayPal or similar which can be used for disputes, IMO.
Fingers crossed that you have that avenue available to you (you may have mentioned it & I missed it).
This is one bunch that deserves Dishonourable Addition to the proverbial SHYTE List. Sadly I do not think the site can actually have an "official list" as such, I'm sure some, scum sucking lawyer would get into
@Will Prowse's face which he nor us need at all. Pinging Will for an opinion, would it be worth trying to have a list of Sheister Vendors ? or would it be an administrative nightmare ?