Why Do So Many ''Bank'' Telemarketers Call?

Ever wondered why you receive so many calls on your mobile phone from ''banks'' asking you to sign up for credit cards, balance transfers, insurance packages etc?

Well, most of the time, these telemarketers who call you aren't even from the banks, they are calling from a third party organisation that has been appointed as a marketing arm for the banks. So all they do is call call and call existing bank customers.