Can you please repost the NEW connection information, as shown on your last theread https://community.bt.com/t5/BT-Fibre-broadband/Speed-increase/m-p/1821813#M262794
That will show whether your line speed has increased.
How do I do that again I can’t remember sorry
If you are using the BT Smart hub you can get your connection stats by, Opening a new web browser on your connected device and type 192.168.1.254 or bthomehub.home into the address bar. This will open the Hub Manager. Click ‘Advanced Settings’ and then ‘Technical log’
As has been reported many times on this forum this has happened on renewal due to the loss of G.INP.
This should automatically kick in again in 10-14 days and return your speed. It cannot be done manually.