If you did not get an answer from the person in charge, I see two possibilities:
Go all in and send all documents. You have them all ready anyway (you have them, right?) and if they request it, they can have it. If you go for this option, make sure that your CV is well organized and that the whole application document is perfectly ordered as well.
Just attach the most recent ones and add something like "Complete documents can be given if needed". This may save you some time and maybe the committee will not need the documents anyway.
From my experience, these rules often sound more strict than in reality and in reality the committee often does not know the exact rules anyway. But there is always the possibility that some committee member insists on following all rules to the single letter.
Another thing: Often there are two people to ask questions about the ad: The dean and the head of the committee. You may also ask other faculty members at the institution if you happen to know somebody there.
Another remark: As a head of a search committee it is pretty normal to receive phone calls close to the application deadline, so it a question is urgent, rather call than write an email.
