Slow speeds now, has my IP profile been lowered?

Question

My broadband has been fine for the past 2 years with a download speed of average 1.3MBs (1300kbp/s)
There has been absolutely no changes to the environment in the house, no extensions.
My Router is connected to the ADSL filter, connected to the master socket face plate.
On June 2nd around 22:00 BST I noticed very high latency and disconnections on my Broadband.
I did the usually by resetting the router, waiting a couple of minutes are restart. However that didn't fix the issue.
I picked up the house phone and noticed there was a LOT of noise on the dialtone, I tried the 17070 quiet liine test and same again, a lot of noise.
So I called up the BT Broadband helpdesk and spoke to a lady in India, had a long conversation with her running a few line tests and concluding there was no issue on the BT circuit side.
So I decided to leave it and hope for the best that it would fix itself, the next morning latency is fine back to normal (pinging 4.2.2.2 <40ms) and BB is stable with no disconnects.
However my BB speeds appeared to have dropped to about 700kbp/s tops, has BT lowered my IP profile to stabalise the line??
Can someone advise? Here are my stats:
ADSL line status
Connection information
Line state
Connected
Connection time
0 days, 12:56:02
Downstream
7,645 Kbps
Upstream
440 Kbps
ADSL settings
VPI/VCI
0/38
Type
PPPoA
Modulation
ITU-T G.992.5
Latency type
Interleaved
Noise margin (Down/Up)
16.1 dB / 29.2 dB
Line attenuation (Down/Up)
31.5 dB / 16.6 dB
Output power (Down/Up)
0.0 dBm / 12.9 dBm
Loss of Framing (Local)
0
Loss of Signal (Local)
0
Loss of Power (Local)
0
FEC Errors (Down/Up)
372 / 4294967264
CRC Errors (Down/Up)
0 / N/A
HEC Errors (Down/Up)
N/A / 0
Error Seconds (Local)
0
Thanks

Answer 1

Hmm that's strange, I haven't touched the router and it looks like it may have restarted itself?
Although speeds have increased slightly....
ADSL line status
Connection information
Line state
Connected
Connection time
0 days, 10:20:45
Downstream
8,358 Kbps
Upstream
440 Kbps
ADSL settings
VPI/VCI
0/38
Type
PPPoA
Modulation
ITU-T G.992.5
Latency type
Interleaved
Noise margin (Down/Up)
15.2 dB / 28.6 dB
Line attenuation (Down/Up)
31.5 dB / 16.6 dB
Output power (Down/Up)
0.0 dBm / 12.6 dBm
Loss of Framing (Local)
12
Loss of Signal (Local)
1
Loss of Power (Local)
0
FEC Errors (Down/Up)
1454 / 0
CRC Errors (Down/Up)
5 / N/A
HEC Errors (Down/Up)
N/A / 0
Error Seconds (Local)
6