Need a low five-figure sum from my bank of 25 years (never had any real issues with them) and not having done this before, just wanted to know in days or weeks how long this sort of thing takes?
It used to be worryingly easy, but it might be a bit trickier in the current economic climate.
The loan I got from my online banking was just over £10k, which basically involved logging in, clicking a button and typing how much I wanted. Money was in my bank account instantaneously!
No bank is going to set up a personal loan for a month. You need an overdraft.
Don't whatever you do tell them it's for a month, take it over 3 years then repay it within 28 days as you are allowed to under the consumer credit act, it will be massively cheaper.