Digicel is warning of potential fraudsters as persons purporting to be employees of the company have been contacting its customers.
In an advisory posted to Facebook, it says mobile users have received texts which state they can win or have a won a prize.
The text also requests a four-digit code but Digicel says it will never ask persons to provide such information in order to win a prize.
It is urging its users to message the company on Facebook if anyone asks for a reset code or voucher.
Digicel says this is an attempt at fraud.