Susie was very thirsty, so when she passed a vending machine owned by Vending Machine Pty Ltd selling icy cold Sprite she couldnt resist. After checking the price on the machine and that she had the correct change, she inserted the coins in the machine and pressed the button. The machine accepted the payment but did not give her a drink.

Advise Susie whether a contract exists and with whom.

(Word limit: minimum 100 to maximum 300 words)