No, you just need to complete at least 12 jobs in the last 12 months. The counter resets on every last day of the month to ensure you meet the criteria. Only GoGetters verified before 22/10/2018 will be eligible for this bonus.
E.g You can complete 6 jobs in month 1, and 6 jobs in month 7, and you would still be eligible to enjoy the loyalty bonus but you did GoGet jobs only in 2 months.
*The Loyalty Program applies only for those who are trained as GoGetters before 22 Oct 2018.