You do not need to pay for BTMail if you move providers. You will be moved onto BTMail Basic unless you decide to pay for BTMail Premium.
Thanks to everyone who made suggestions but I do not understand the comments made by some contributors about paying. I was talking about the various changes made to the email format / layout / features. I don't see any improvements in the service, quite the opposite in some cases.
I should have added in my previous post to you that along with getting free BTMail Basic if you leave BT, it is as @licquorice has stated a free add on for customers who had their BT email service with their BT Broadband package before 26th Oct.2022 as customers who took out a BT Broadband package after that date do not get a BTMail email service yet they pay the same price for their broadband package as somebody who does have email.
It is not free for those of us paying for premium... but still has exactly the same pretty poor features. As mentioned in other threads... how could anyone testing this release... think that splitting words is an appropriate way to display text for any purpose? Not even clear how on earth you make it do that (windows does not)??
Since your email "update" have you cleared your web browser's history and cookies as recommended by BT.
BT Email is changing | Help | BT | BT Help
Are you making the changes to view Images and Rich text, by going into the "settings" found by clicking on your user name at the right hand side and if you are are you clicking "Save" after you have changed them?
Even although you have previously deleted your browser's cookies etc try logging out of your email account then clear the history and cookies yet again from your browser, making sure it is "From all time" if your browser has that option then close and reopen the browser and log back in to your email account and try going back into the settings and reselect the options you want and click "save".