I have received numerous calls from these guys - a...

I have received numerous calls from these guys - absolutely bonkers and very unprofessional! Some guy called Jon Mysercough called me up and did a reasonable cold-calling pitch; he mentioned a few things that interested me and I (foolishly) sent him my CV, only to never hear from him again. No explanation, no call-back, very stealth and somebody who I would never trust again.
I hoped that Jonathan Myerscough would be a random bad apple but the Robert Walters crew just seem to be like him. Keep well away, these guys (especially JON MYERSCOUGH) are snakes in the grass!