Dear Canadad 001,
I would personaly write to them and ask for more information. What does your e-CAS say? When they asked for your update docs in July, did they give you an email to contact them and did they mention any date "by which you should contact them" if you haven't heard...?
Anyway, we sent our docs in April and only got our med request in September, which makes it 6 months, so hopefully yours is coming soon..?
But there does not seem to be any rules, like Schwarzeradler says, so the only thing to do is keep you fingers crossed (I would email them as well, though
)