Residents are getting calls from companies selling call-blocking devices to stop unwanted calls. These callers are asking for bank details and payments and I urge people not to give these details over the phone to any company you are not sure about. Trading Standards tell me that both Argos and Amazon sell call-blocking devices for a range of different prices. Any contract made with a company outside of trading premises carries a 14-day cooling off period within the contract and if any company does not give that option do not deal with them and check their terms and conditions.