Hi Dears, We don't charge EXTRA FEE for appt with requesting special technician. we only have 3 technicians working here and for random schedule. Please be advised that this is NEVER guaranteed 100% ur request will be on the right one but we will try or best effort to make it work on your appt. If your not happy with the technician on your appt since we can not give you the one u requested, you can RESCHEDULE another time. thank you.