Oo tough one as I obviously only know some of the grades of my friends.
There is a chance, but I'm not sure if you dropped down by that much for two subjects whether any uni would be a bit like "oo what happened there" or "no, didn't make the offer". It would depends on numbers on the course etc etc.
Most universities do have leeway though. Best advice is ring them as soon as you get your results. I'm guessing you can still use UCAS track, as I knew the uni had accepted me before I'd even got my results.
Just a thought though - if your A-level results still meet the number of points that they have given you as an offer, think you'd be likely to be accepted, unless obviously they've stated that you need a certain grade for a subject. Not to mention that they'll see your breakdown of module results so if you've got the lower grade because you've failed an exam but everything else is a B grade - they'll more likely to go OK, rather than if you've got 6 Es for that subject. My offer was points, rather than you need a certain grade in whatever subject.
Fingers crossed though! I personally wouldn't write another personal statement, they see so many and once August is here, it really is all about grades/points - best of luck and if you do have to ring the Admissions office, they'll do their best to help you out!
Anyway, about the course!
Maximum contact hours I've had is 8 per week (for a joint, that'll be split 4 and 4 I think, English might be sligtly more). Work load isn't too bad although at the time it'll seem a bit OMG, but once you get to the third year, you'll be wondering why you were so worried! They're pretty keen on seminars so expect nice chunks of reading, some hand out more than others. First year is all about getting into the swing of it type thing.
I found the step up from my first to second year far harder than from A-levels to Uni.
History course is fantastic - no other word for it really. Best decision I ever made going there. For a small department there's a big range of subject areas and mini areas within that. It's been some of the most fun I've had in my life, the staff are brilliant, really happy to chat and get to know their students. None of this student/academic divide. Very approachable, a very good open door policy if you've got any problems. Make use of it, I did in my second year and had I not done (mine was health reasons), I doubt I would have passed my second year.
Bar the odd gripe but that's more personal rather than a general feeling, I can only say very positive things about the course, department and university.