I used to get really paranoid Marcie, prior to advertising my number, so if I got a 'are you available' message I got anxious it was a previously blocked stalker. Usually it was them using 2 phones.... getting a lot of 'what are your rates' type phonecalls. I end and block straight away because they're too thick for me. Got a phone call tonight which just went 'how much' when I answered. Not even a hello.