I have also had numerous called from this crowd, namely Adam, Theresa and Sherry. They all have American accents and there is a delay on the phone line, as if the call is coming from the States. I have been polite, and I have had to resort to being rude! I hung up on one particular call, and he called straight back and asked in shocked tones 'Did you just hang up on me??'
I have never experienced a Sales Rep to fight back and bully you into signing up to using their product! It's not a good approach. I appreciate that the job can be quite difficult, but that is no excuse for harassment!