Look I hate to be the downer on this but in the UK, NOT changing the address of where you live on your driving licence is actually illegal. No matter what the reason, you must always inform them of your current address. CIC London will know this and wonder why your driving licenses are not the same address as the place you told them you lived at for a year.
Can you see the confusion forming now???.....also although not illegal, other important documents that should have had your current address where not changed. Again, CIC will be questioning why someone, living at an address for a year, does not have bank statements etc with that address.
Unfortunately, even for the reasons you state, you have raised red flags with CIC and to be honest, if I was an IO in London, I too would question the evidence you produced.
Your best best is to basically write them a letter similar to what you have written here. Explaining, that at the time you did not have any intention of coming to Canada but life changes etc, hence why the evidence seems a little bit off. Also the notarized common law form should have been sent with the Outland application, along with notarized letters from family and friends.
An interview would probably be in your favor in this case, as you seem genuine and I am sure an IO would see that too. Just gather together everything and anything, however trivial and send it in. No such thing as 'too much' for CIC.
Good Luck.
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