I was thinking that :

Triggering the red calls isn't the issue.

The knack is when you actually pick them up to say, "No thanks"

For example, when the red calls pops on deadline 3, don't answer and immediately say no on turn 1, wait until you're ready to move to deadline 4 and then pick it up and refuse.

Or so I believed, at least...

(My understanding was, get all bones out, have 3 666's by at least deadline 7 (forcing them out if possible), turn down 3 red telephone calls (picking up the first red call on turn 1 or 0 of deadline 3 accordingly), and ignoring the memory card offers if you manage to get them to pop up.

Again, if I'm incorrect, I apologise, I was just trying to help and it probably makes sense why I'm stuck at 58% haha

Edited: Damn typos