>>> Buenchico does have a link to a company selling used computers if you cant stretch to a new one.
Yup, I do. It's the firm that I buy from, it's the firm that I've bought stuff on behalf of friends from and it's the firm that I've recommended countless times on here (with nothing but positive feedback from AB members who've then gone on to make purchases from there):
https://accomputerwarehouse.com/product-category/cheap-refurbished-laptops-uk/
Any of the laptops shown there would meet your very basic needs easily enough. Look a solid state drive (SSD), at least 4GB of RAM and an i5, or faster, processor. (i3 is slower, i7 is faster). The ProBook 6470b, at £175, should be absolutely fine. (The Elitebook 820, at £199 is slimmer and lighter but at the expense of not having a CD/DVD drive, which you might find useful if you want to play discs). Shipping is free if you use their 3 to 5 day service (or £10.95 if you need it faster).
Whenever considering a refurbished laptop though (irrespective of who the seller is) you need to remember that batteries are normally regarded as expendable items, so the one that will come with your laptop might not hold a full charge. That's obviously not a problem if you'll only be using the laptop via its mains charger unit but otherwise you'll need to add a bit more onto your budget to allow for a new battery. (AC Computer Warehouse never ship out laptops with really duff batteries though; they'll always hold a decent bit of charge. A spare battery for the ProBook 6470b costs £16.99, post free, on Amazon:
https://tinyurl.com/ybhdtbuh )