I left BT in April to join Virgin Media (stupid mistake, I am moving house in a few months and didn't think to check if VM would be available there. It isnt. So I'm leaving a rolling contract) before I left BT, I was on a Fiber 2, 67mb speed router (tho it rarely got that speed) with Halo 1. I come back to the website now to find all that is gone in my postcode and the fastest I can get is Fiber 1 (25mb)??? What has happened there?
Have you checked https://www.broadbandchecker.btwholesale.com/#/ADSL using your postcode to see what speeds you maybe able to get?
Postcode doesn't give an accurate estimate as post codes can cover more than the area served by a cabinet. The address checker will give a reasonable estimate.