Lele,
I hope you're doing good.
As for the papers, after dropping them in the box, you don't send them by email or fax.
It is strange they haven't asked you for the RQ after all that time, I don't think you should do it on your own, but I hope they don't ask for it later on and delay you a bit more, but if you order the CAIPS it will list what they've requested from you, in case they forgot to mention the RQ in the email they sent you.
Or your husband can simply call Immigration and ask them if the RQ was requested or not, from my experience; I called them and they basically told me what kind of documents I have sent to the Embassy in details, and when I got the CAIPS few days ago I confirmed they have access to such information.
I was going to go to Lebanon, but after my wife received the email to renew medical and RQ I changed my mind, and I'm hoping to go there one last time to pick her up and bring her back with me.
I hope this helps you Lele, good luck