SCAMwatch is warning consumers not to respond to text messages which claim you have won a voucher, when in fact you are entering into an expensive mobile premium SMS service.

How this scams worksYou may receive a text message from an unknown number congratulating you on winning a voucher from a competition you supposedly entered into.This scam uses (without authority) brand names and logos of well-known companies and products in order to make the prize look legitimate. The voucher is for a high dollar value, which makes it especially attractive.You will be provided with a code to enter into a website to claim your voucher. Once the code is entered the website link will redirect you to another website confirming your win.On the second website you will be requested to enter your mobile number. It has been reported that if you enter your number you may be subscribed to a mobile premium service (mps).Mps can be activated by typing your mobile phone number into a website resulting in you receiving an expensive phone bill you didn’t expect.Similar scams are perpetrated via email with links to online scam surveys.