The former Barcelona man will be asked for his observations by the Football Association on the matter, before a decision is taken whether or not to put the issue to an Independent Disciplinary Commission.
Sky Sports News understands as soon as Mina realised he might be in breach of the rules, both he and the betting company involved removed the advert.
Professional footballers are not allowed to individually promote betting companies, but under FA rules they are allowed to advertise gambling firms via their clubs' commercial activities.
The FA have asked for a response from Mina who has made 13 Premier League appearances for Everton this season, scoring one goal.