They do! I block their numbers every time I get a call from one of them (they have several) and a week later I'll get a call from a new number (same company). It's so frustrating.
They just called me, claiming to be "Scotiabank" wanting to sell me insurance. I said I'd call my bank, and call them back. They insisted that I didn't need to do that. So I hung up. I called Scotiabank HO, and they confirmed that they have not tried to contact me about insurance.
just got a call from 416 847 8768 ... like Bill I answered the phone and no response ... but oddly after reading the comments I deal with Scotia Bank and do know that they give the client list to another company to call and see how you like your banking ...