Entries for the mystery voice competition can only be made at the website www.tko.radio.
The prize fund will start at 50€ & increase by 5€ every weekday.
Incorrect guesses will appear on the website.
The prize is capped at 250€. If the prize reaches this level it will not increment any further.
At the 250€ level TKO will start giving clues to the mystery voice, but no further value will be added to the prize fund.
TKO Radio & TKO Media Group employees, freelancers and family members are ineligible to take part.
Winners will claim their prize either from TKO radio studios in Torrevieja (will need to bring ID to prove their identity) or can choose gift cards equivalent to the amount of the prize for Amazon.co.uk or Amazon.es.
Entry is available to people aged 18 and over only.