To think that my neighbour is batshit

[soooomuchroomforactivities]

Recently moved into new flat (6 weeks). yesterday a get a very rude, heavily underlined note in my mailbox from flat downstairs, saying Im a nuisance, a noisy neighbour, she 'owns her property' and is quiet and I am ruining it for her and she will be reporting me (no mention of to whom).
My crime? Putting on my tv at 7.45am in the morning on saturday morning.

After getting over the shock of this and the rudeness of the message i decided i would go and see her to keep the peace. However, in the interim, i had two visitors come to see me at 2pm. They passed her in the stairwell and they said good afternoon. She shushed them, told them to 'shut up', 'be quiet' and to stop being so loud in the hallway? When they said but they were just walking up the stairs, she yelled at them that they were 'disgusting'.

Soooo living here is clearly going to be interesting!!!!

I am in a semi and dont listen to tv in the bedroom because of noise. So I do think it was a little early and it is not great to have a tv there. But if you are sure it is on low why dont you put it on and ask to go and listen in her flat to see how loud it is? Sometimes it is hard to know how sound travels between flats and it may be louder there than you know. Or she may be full of shit and that would let you know.

Never appease a tyrant.
Owned or rented makes no difference to civilised behaviour.
Your neighbour is rude, ill mannered, unreasonable and disrespectful.

As other posters have said, keep a log of her previous and any
future altercations.

I checked my tenancy agreement, which says
no washing machines or dryers between 8pm and 8am.
It would suit me fine to have everything going in the evening,
but its just not possible.
An elderly man lives below, I only ever hear him laughing watching tv,
or when he is on his phone.

Any time he sees me he asks does his tv disturb me. I have never once heard it.
He can hear my washing machine, it is on a pad to muffle the noise, says
it doesn’t bother him.
We have thick carpet on concrete floors which helps,
as does a v heavy door curtain to block out noise from the landing and stairs.

Neighbours can be awful, I know, had to move because of them.
There is a site online called, Neighbours from Hell, in fact there are a few.
Some of the posters are at their wits end, but have a read if you have an
inclination, you may pick up some tips.

Do this!

I used to have a fucking mental bat next door. Complained about literally everything. I told her to fuck off then totally blanked her. Didn't stop her but didn't cause an escalation either.

PS. CAB are totally utterly useless and so are the council and police unless the neighbour physically does something and someone else sees it (ask me how I know). So you can either blank her or wind her up more and be prepared to deal with the consequences. I would go with keeping the peace personally.