Bit of Background info; my BT Broadband has never been great. I知 situated about 4 miles from the Barrack telephone exchange.

Last November my Assured Rate IP Profile was 500 Kbps and I was getting a download speed of about 441 Kbps. At the beginning of this year my Assured Rate IP Profile dropped to 350 Kbps and I was then getting a download speed of about 310 Kbps. Yesterday my Assured Rate IP Profile dropped to 250 Kbps and I知 now getting a download speed of about 216 Kbps. I use BT's own speedtester.
This morning I couldn't even connect to BT's speedtester.
Is anyone else having problems with BT?