what's your sources.list because it looks like apt having problems with repo's and could you dump what's inside /var/log/dpkg.log and history.log

Sources.list contents below. I tried changing it to deb https...etc. but it is unwritable file. Sorry I don't know how to dump the log files.
user@The-Bug-Too:~$ cat /etc/apt/sources.list

deb http://http.kali.org/kali kali-rolling main non-free contrib
#deb-src http://http.kali.org/kali kali-rolling main non-free contrib

in think you should uncomment deb-src line because apt use only first and don't do https it's useless

Thanks for your suggestions which I followed but it still doesn't work.

deb http://http.kali.org/kali kali-rolling main non-free contrib
deb-src http://http.kali.org/kali kali-rolling main non-free contrib

Err:1 http://http.kali.org/kali kali-rolling InRelease
Temporary failure resolving 'http.kali.org'
Reading package lists... Done
Building dependency tree
Reading state information... Done
All packages are up to date.
W: Failed to fetch http://http.kali.org/kali/dists/kali-rolling/InRelease Temporary failure resolving 'http.kali.org'

after modifying sources.list did you do apt update
and for experiment change from http://http.kali.org to https://http.kali.org in both repos and see what you get maybe this will help

Hi Michu, thanks for your help with this. I changed to https as you suggested on both repos and this made no difference, still doesn't update. And yes I did update in answer to your previous question. I'm at a loss at what to do. I've Googled the problem and it seems over the years many people have had similar problems with various versions of Kali but I can't find any answers that work. I would've thought Kali would've answered unless you are Kali but as I said before I'm very grateful for your assistance.

The part of the error message that matters is " Temporary failure resolving 'http.kali.org'". Thats a name server resolution issue. You can test by trying to resolve other DNS names inside WSL.

To correct, you need to not be messing about with the sources, but instead look into the networking. In particular
/etc/resolv.conf.

The ip listed in /etc/resolv.conf is 172.18.224.1 which refused to connect.

Ok. So change it to something known to be valid. Perhaps the same IP your windows host is using, or just google dns at 8.8.8.8. At this point its just a matter of basic network troubleshooting for you on setting up your DNS. Once you get that resolved, then your next step is a questions of why is it setting DNS to that, and why is it not working. That's going to be general non-Kali specific WSL issue for you to contend with.

I need more help please.

Sorry I just saw your subsequent note. I'll follow that up cheers.

This report has been filed against an old version of Kali. We will be closing this ticket due to inactivity.
Please could you see if you are able to replicate this issue with the latest version of Kali Linux (https://www.kali.org/get-kali/)?
If you are still facing the same problem, feel free to re-open the ticket.