Vodafone is offering its UK customers the chance to win the cash equivalent of one million instant messages.
Vodafone says it is looking to make three customers "instant messaging millionaires" by the end of next month.
Customers aged over 16 will be automatically entered into the competition by sending instant messages through Vodafone Messenger.
Three customers will then win the cash equivalent of one million instant messages (the £3000) and therefore become IM Millionaires.
After 31 March, three customers will be chosen at random to become Messenger Millionaires.