Hiya, thanks for all of the replies!

I ended up phoning the council again and explained that I can't give notice for our marriage until I receive a letter from the council to use as proof of address. The woman said she's moved me up the queue and will have a letter out by the end of the week. Fingers crossed.
I also ended up phoning my bank. I'm so thankful that I still have an account here from when I was a student. There's almost no money in it as my fiancé and I are planning to get a joint account once we're married and I have an amazing bank in the states so I normally just take out an amount each week from there. Anyways, phoned my UK account and was able to get signed up for paper statements. The person also said they would send out my most current statement in the mail today. So hopefully I'll be able to use that until the council tax letter comes in.
As for the statement I had made about wanting to register with a GP, I'm fully aware I have no access to the 'free' NHS until I'm on FLR(M). I have no plans to use the NHS until I am on FLR(M). I had wanted to register now so that I can have another piece of mail to use towards our FLR(M) application. I had made sure to obtain the full amount of medication needed to last me until then and also have health insurance as a just in case. It's not the end of the world if I can't register with a GP now, as I should be able to get to 6 pieces of correspondence without it. But it is good that I am aware that I might have a difficult time registering!
Again, thank you all for your help. It's been a strange adjustment these past few weeks since arriving but I'm so thankful for everyone's support here!
