An 86-year-old woman was mugged in the car park of Aldi in Bradwell Common on Saturday.
At around 4.15pm a man and a woman approached the victim, who was sat in her vehicle, they pointed at her tyre suggesting something was wrong.
The victim got out the car and the man pushed the elderly victim whilst the woman took her purse.
They took her bank card and ran away towads Bradwell Common Boulevard.
The man is described as white, of medium build, aged in his twenties to mid-thirties.
He was wearing a black long-sleeved coat with a number of zips on, a dark-coloured baseball cap, blue ripped jeans and red trainers.
The woman is described as aged in her late twenties to early thirties and slim.
She is approximately 5ft 5ins to 5ft 6ins, and has curly long brown hair.
She was wearing a white Puffa-style jacket, blue jeans and white trainers.
Anyone with any information about the incident should contact the 24-hour Thames Valley Police enquiry centre on 101.