to option you cancell the link pr 3 or pr4
after 1 month is 5 $ to links ( something pr ) ( then you pay 60 $ for the first month and I pay to you 5 $*3 month * 3 links = 45 $ )
after 2 month is 6 $ to links ( something pr ) ( then you pay 120 $ for the 2 month and I pay to you 6 $*2 month * 3 links = 36 $ )
after 3 month is 6 $ to links ( something pr ) ( then you pay 180 $ for the 3 month and I pay to you 6 $*3 month * 2 links = 36 $ )
after 4 month you pay 240 $ and point.