Nobody can tell you when you can "expect" to get anything. You will only know for sure AFTER they approve her application. Nobody can tell you anything else at this point - not your MP, not the VO, not Santa Claus.
According to your profile information, you applied in May of 2012 and you got your acknowledgement in August of 2012. That means it's barely been 3 months...so you're not even a third of the way through the process. Manilla is processing 80% of applications in 11 months, so that means you have an 80% chance that it will be completed by July of 2013, assuming that you submitted a perfect application which required no additional information, no corrections, and nothing else that would slow down the process. But I notice that you also have a note in your profile saying "docs and pics resent" in September, and I don't know what that's all about, but every time they need additional documents from you or corrections for something, you have to realistically add another month or two to your processing time.
By contacting your MP and getting him to start nagging your visa office when you're only 3 months into the 11 month process, there's a very good chance you're going to piss off somebody at the Manilla VO, and your application will quickly end up at the bottom of the pile.