Guild Wars 2

I’ve found on wiki that people can place up to 5 siege in 1000 range. I know that it works when I’m sieging up my stuff in WvW, but last time enemies attacked us with 7 SRams and took T3 tower just a moment later when contested mark appeared. It’s a bug or sth?

Is it possible BOTH of the other sides are attacking together? That would allow double the siege you THINK should be attacking to be present. Not a big WvW player so I’m just asking…..and maybe this would be better asked in the WvW forum?