MONSTER - Not so unique numbers

This crowd are the promoters of the Monster Energy competition now running to win a car. Part of the competition is to submit a code via SMS to a number in order to enter the competiton. This code is obtained from every MONSTER energy drink and is supposedly unique. After sending in the code you receive a confirmation that your entry is valid and has been received. However on several occasions (at least 5) I have sent in a code, only to receive a reply that the code is either invalid or has been already used. This is impossible if the numbers are supposedly unique and I have that number on the ringpull of the can. This is very suspicious. DO not waste your time buying MONSTER if you are looking to win a car- chances are you cannot be entered because your number is invalid. What a shabby setup.

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