Competition is moot for most users of AAM. From their terms and conditions:
3. All competitions are open to UK residents aged 18 or over unless any other age restriction is specified or implied. Where entrants are required to enter in one of several age categories, the applicable category shall be that appropriate to their age on the closing date of the competition. Entrants should, if under 18, obtain permission in advance from their parent or guardian and be able to demonstrate that to the Judges's satisfaction. Employees of INM, regular contributors and contractors, the promoters and individuals connected with any company involved in the competition, agents and members of the immediate family of the above people will not be eligible to participate.
(No. 18 is The Lost Weekend)