We get 2-3 a month on the phone sex end of things
Ya can't fight them unless you have a signature with some of the banks... Or direct emails with their names on the email and an IP from the email from their area discussing the service indepth..
It's VERY hard to win webcam and phonesex chargebacks.
however, I background check the fucker... find his mom/wife and try to do a collection ;) while informing them of his fucked up fetish.
Find this dudes wife and provide proof of whatever girl he did his shows with.. I'm sure she'll appreciate it ;)
Then give some song and dance about how that girl will now not be able to afford her books for school this semester because she has to eat the fees.