Sign in to TalkTalk Mail here and you'll see the mailbox Inbox.
Folder view will show the Folders side panel. Select View > Folder view or toggle the double arrows bottom left.
When a folder has sub-folders there's an arrowhead before the folder name. Select that arrowhead so it's pointing down and you'll see the sub-folders.
If there's no arrowhead by the Inbox then there are no sub-folders of the Inbox.
Have those subfolders been inadvertently deleted? Have a look in the Trash folder. If that has an arrowhead by it then that folder also has sub-folders.
Do you have an Archive folder? By default that has sub-folders organised year by year.
If you know what content you're looking for then you can use the Search function top left. Search the Inbox and if the search doesn't find anything you'll be offered a search of the entire mailbox.
If you don't find what you're looking for it's likely not on the server.
Thank you for trying, but no, no triangle next to in box and checked archive and trash and tried search but nothing. I think I am going to just going to have to wait to speak with Talk talk.....not easy to get an ear with them at the moment thou....:(
Appreciate my problem is not life threatening, but frustrating all the same.
Given that you cannot find the folders on the server and because TalkTalk does not offer a backup service for mail messages the only place you're going to find those folders is on one of your email devices if it's been set up as a POP3 mail account and has downloaded the folders to the local device.
So, check all devices that you've used to connect to the mailbox and see what you can find.