What you have experienced is something that modern technology allows, it's known as profiling. The way it's done is insidious, for example. Your credit and debit card both give the issuing bank your spending habits, as does any electronic gizmo, your supermarket and other loyalty cards, do much the same. Internet cookies are prolific at farming your information. This trawling for your spending and other habits, knows no bounds.
The information is then profiled, and this is where George Orwell's predictions were so accurate. His book, "Nineteen Eighty-four," published in 1949 as a warning against totalitarianism. The novel's chilling dystopia is as relevant today as it was in 1949.
Your profile is then bought and sold until a huge mass of information about you is gathered, then it's sold to those with a vested interest in that information. Here in the UK we have a law known as The Freedom of Information Act. It gives us the right to access any information that has been stored about us, however, that law only covers public bodies like the police, government departments, local authorities, the NHS and state schools. Private organisations do not come within that law's remit.
You have but one option to opt out. Pay by cash, that is, as in the filthy folding stuff. It's anonymous, you can't be traced and that's why cash has a bad name, that's why payment by any other means is so preferable, to those for whom George Orwell so timely called: Big Brother.