Posted 16th Nov 2021
In the EE app today there is an offer for unlimited data add-on. Seems to be limited to 50gb EU and 600gb FUP.

Seems okay value if you can make use of it, especially as it's 30 day rolling so could turn it on for holiday for example?

So to re-iterate:

No known end date.
Certain plans only, but no idea which ones.
600GB/Month FUP.
100GB/Month Giftable.
50GB/Month Outside of UK as long as you joined before 7th July 2021.
30 Day Rolling Add-on
Cancellable by texting STOP UNLIMITED ADD-ON to 150 at any time.

Terms Link:
Community Updates
Permanent Offers