Who may file a complaint?
Tonga
Electoral Act 1989 (withappropriate reference to Electoral Amendment Act 2010), PART III - ELECTIONS, 17,p. 12
17 Recounts.
(1) Anycandidate may, within one week of the declaration of the poll,
demand inwriting addressed to the Supervisor of elections, that the votes
be recounted
http://legislation.to/Tonga/DATA/PRIN/1989-022/ElectoralAct1989.pdf
http://tongaelections.com/images/stories/TECdocuments/ENG/ElectoralAct/electoralamendmentact2010.pdf