Interesting to hear that EMB190 knows a pilot who received the call with 600 TT and 150 ME, far away from the minimum requirements.
I have 1600 TT with 1100 in Turboprop MAP and nothing!!!
Well I have three times your experience, all of it at LCY. No call either
I suspect that jet time counts first and foremost, with personal recommendations not far behind.
Good luck to all invited and 'chin up' to those not.