The latest report is of an 80-year-old, female resident of Dibdin Road, Sutton, who received a telephone call during the afternoon from a man saying her bank cards needed renewing.
He arranged for a courier to collect her cards and the woman handed over her bank details and cards including her PIN. Two transactions were made subsequently on her cards - one for £2,800 and another for £2,600.
The suspect is described as a white man, of around 6ft tall, of slim build. He was wearing a dark coloured jacket.
Earlier the same day, a woman, aged 89, of Netley Close, Cheam, was also told her cards needed renewing. She handed over £340 cash to have her notes checked and had £240 withdrawn on her card once the courier had left. The suspect is described as a white man, aged 25-30, of slim build. He was said to be of smart appearance and wearing a dark jacket.
Police advice is that you should always be suspicious of telephone or doorstep callers asking to see or collect your bank cards and asking you to reveal your PIN. Your bank will already have your account details and would never ask for your cards to be returned - and such requests are likely to be a scam to steal your money.
If you are suspicious of anyone calling at your door, shut the door keeping them outside, and call police on 999. We would rather come out and check that everything is OK, than to find someone has become a victim of crime.