Laptop- old or damaged is fine (Camden NW1)

I volunteer for a charity and will have to have at least a month of work while I'm recovering from an operation on my ankle. I need a laptop so I can work from home which is very difficult on a phone. I don't mind what condition or what age the laptop is in, or how fast it runs etc.

I am also happy for a desktop computer... even though I haven't really got space for that it would do the job.

Thank you so much ☺️