I have never ever in my life ever abused anyone on the phone, except once for an indian guy who called during dinner when i was having a souvlaki and he wanted to flog me a telstra deal. Its not the girls fault and people shouldnt be ringing. I actually feel very sorry for them.
He rings me too, I tell him does he undertsand English he says yes, I say eff off, he undertsands English
Here's a sure fire way of reducing your marketing calls....
Whatever they're selling tell them that you either already have it or you do it as your profession for their opposition.
Need life insurance???............I am a life insurance consultant
Need financial advice???.............I am an financial planner by trade.
I guarantee you, this technique will reduce the ammount of calls you get substantially as they flag you as competitor in their database. We went from 7 calls a day to now 1 a month if we're lucky.
Don't know if this will work for the RFC though.