First of all, to snowiie, I apologise on behalf of my team regarding any miscommunication about mercs, although I hold no responsibility whatsoever in the team itself.
We had to use a solly merc because our main has real-life stuff to deal with, and our sub is afk. A spy merc was also used since our main is afk (but later able to play after the 15 minute mark, we actually was able to 8v9.) We had to call our main solly away from his real life stuff, while waiting for him our mercs were in spec on standby, in case they actually changed their minds and allow mercs. Mercs were ready to leave anytime anyhow was ready (which they weren't because apparently it became a game of "you go first" and had to make our mercs leave.) So while waiting for our solly to join, like the two before me had already said, they just left the server without any prior warning or prompts, not even asking if we'd like to start with 8 only or a reschedule.
Though I would agree that it's irresponsible of our leaders to not inform you guys of the mercs.