The system was introduced last year after a six-month pilot

Rochelle Katz, 47, won the prize, worth almost �3,000, after she became the one millionth person to use Westminster Council's Pay by Phone system.

The cashless scheme was introduced last year, allowing drivers to pay for parking with a phone call or text.

The system operates in about 2,000 bays across Westminster.

Ms Katz, an interior designer from Kensington, central London said: "I wish there was Pay by Phone parking everywhere in London - I use it all the time."