I know they stored our phone numbers but for them to blacklist anyone, the girl will have to turn on the KMP's master mainframe 3000, enter the client's phone number and next to it, type "skip without paying", click Save, logoff. The other KMP would then logon to the master mainframe 3000, logon, open the program, perform a query using client's number and check. Sounds like a a lot of high end technical expertise going on inside the KMPs.
BTW, since you were nice enough to call me Mr. KMP, I thought I let you know that 90% of the KMPs are owned by the same organization. Which is why it is pointless for members of the Triedent crew to shill for any KMP. They will get your business one way or the other.