"You dialled a long distance number" even if in coverage zone
Since I bought a travel add-on for the United States, every time I dial a Quebec phone number (my coverage zone) a voice tells me before the call begins that I have dialled a long distance number, even if I'm back in Quebec. I've already tried to turn off and on my phone to "let it know" that I'm in Quebec, but I still get the messages before calling.
Have any of you encountered this problem before and what have you done to resolve it?
Thanks in advance for your help!