info@wandsworthrefugees.org are still in need of help dealing with emails.

http://www.refugees-welcome.org.uk/refugeeswelcome-groups-training-action/ has a list of local groups with email contacts, so you can try the one nearest you.

https://do-it.org/ is a great idea in theory. If you click more options, there's a "do it from home" filter.

If you want to get back into coding, there are open source projects that are happy to teach people from scratch, so you'd have a head start already having done some Basic.