I get those too. Its bad enough in some areas that I have had friends who screen all their calls - you get routed to an answering machine, they listen, and will pick up if it is a legitimate call. A funny - when my DD was little, I was trying t teach her the pitfalls of the world - I got an offer for a free synthetic diamond - of course they wanted to sell me all the settings for my "free" jewel. I turned it all down, and got my fake diamond in the mail, in a little black velvet pouch. That was another time when you could just hear the frustration in the caller's voice.
This is a bank I have had dealings with, and I also occasionally get these calls from my main bank. This may be why they can phone, the others do not. Otherwise, yes, from my mail I could easily have 10 cards. Plus the ones from the grocery store(IGA/President's Choice), Canadian Tire, and so on.