Some months ago my aged mother in law was phoned by a distant selling company who persuaded her to purchase from them, some quack herbal remedy. At the time my MIL was registered with the Telephone preference service.(TPS).
So on her behalf I complained to the TPS, cancelled the order, asked for her money back, and returned the dispatched goods with a strongly worded letter.
I might as well have beaten my head against a brick wall.
Today they rang her again and persuaded her to buy another useless product.
So here we go again.