I can't say enough good things about using WISE for business and personal currency needs. Really easy and a lot cheaper than the bank! Give it a try with a fee-free transfer of up to 500 GBP.
https://wise.com/invite/ath/edwinq6 I do get a little kickback if you use my link.
I use it to pay VAT in UK, send/recieve Euros. In the last month I used it for Bahts in Thailand and Hong Kong Dollars. Very low fees and the best exchange rates. I'm visiting UK now (in Malvern today). Was able to withdraw £500 at a no fee ATM.