Inconsistent advice on PhD wordcount
I suggest that you need as a matter of urgency to extract from the administration of your university a copy of the regulations for your PhD programme. (I am surprised that you were  not given these at the outset of your course; most universities claim to provide that information to their students. It's probably part of "good practice" that universities have to sign up to.)

I suggest that you also need to write down exactly who said exactly what to you about the word limit not mattering. 

I suggest that you need to address the issue of the supervisor not responding to emails: have you a record of 8 months' non-response? Have you had regular meetings? How frequently?

Does your university have a system of "graduate advisers", or is there someone who is "in charge of" the programme -- I don't mean your academic supervisor? Is so, I suggest that you take this whole sorry tale to them (in confidence) and get help in dealing with what seems to an outsider to be a very unsatisfactory state of affairs.