Obviously we are all different, but your story sounds similar to mine. I had borderline changes a few years back, which appeared to resolve at my follow up smear. I should have had a smear the year after but for various pretty dumb reasons skipped it. Anyway I was petrified but only had CIN3 which hopefully is now all gone.
It seems they missed a spot in my first LLETZ so was lucky enough to have 2 shots at LLETZ. Anyway both times I called up exactly 2 weeks to the dot and was lucky enough to have the letter read to me over the phone saving me a whole heap of anxiety. I would HIGHLY recommend it for your sanity. Ask for your consultants secretary, say you are v anxious, possibly make up a mysterious trip abroad etc and hopefully they may take pity on you. I understand the labs usually send the results back within 10 days so it is just a question of your consultant having the time to look at them and dictate a letter for your ongoing care/ discharge. Obviously that will depend hugely on workload which is why they quote 4-6 weeks.
It is extremely unlikely to be cancer in such a short space of time. I totally convinced myself I had heaps of symptoms (including the classic post coital bleeding which I never had before) but it all turned out ok for me.
I have everything crossed for you for swift and positive news! Hope you are recovering from your LLETZ ok, am so fed up of spending my boots points on always ultra!