Poor speed on new installation, how do I get help?...

Question

Posted here a few days ago and also mailed forum moderators asking for comment. No response.
IP Profile on line is 6mb, despite all figures suggesting we should get at least 10mb. Downloads are around 5.5mb.
Have tried all the suggestions from the folks here on the forum, HH plugged direct into microfilter into master / test socket. No other extensions in house.  Really disappointed with the service, would like to know what options I have to get this looked at by competent support, without being expected to pay £90 for an engineer.
Line state
Connected
Connection time
1 day, 18:18:21
Downstream
7,383 Kbps
Upstream
920 Kbps
VPI/VCI
0/38
Type
PPPoA
Modulation
ITU-T G.992.5
Latency type
Interleaved
Noise margin (Down/Up)
3.4 dB / 5.9 dB
Line attenuation (Down/Up)
37.5 dB / 19.7 dB
Output power (Down/Up)
20.1 dBm / 12.1 dBm
Loss of Framing (Local)
0
Loss of Signal (Local)
0
Loss of Power (Local)
0
FEC Errors (Down/Up)
0 / 75
CRC Errors (Down/Up)
10694 / 2147480000
HEC Errors (Down/Up)
nil / 88481
Error Seconds (Local)
1
1. Best Effort Test: -provides background information.
Download Speed
5427 Kbps
0 Kbps
7150 Kbps
Max Achievable Speed
 Download speedachieved during the test was - 5427 Kbps
 For your connection, the acceptable range of speedsis 2000-7150 Kbps.
 Additional Information:
 Your DSL Connection Rate :7380 Kbps(DOWN-STREAM), 920 Kbps(UP-STREAM)
 IP Profile for your line is - 6000 Kbps
The throughput of Best Efforts (BE) classes achieved during the test is - 3.67:16.51:79.82 (SBE:NBEBE)
These figures represent the ratio while sententiously passing Sub BE, Normal BE and Priority BE marked traffic.
The results of this test will vary depending on the way your ISP has decided to use these traffic classes.
2. Upstream Test: -provides background information.
Upload Speed
739 Kbps
0 Kbps
920 Kbps
Max Achievable Speed
>Upload speed achieved during the test was - 739 Kbps
 Additional Information:
 Upstream Rate IP profile on your line is - 920 Kbps

Answer 1

Posting as requested.
Line state
Connected
Connection time
5 days, 1:00:46
Downstream
7,383 Kbps
Upstream
920 Kbps
VPI/VCI
0/38
Type
PPPoA
Modulation
ITU-T G.992.5
Latency type
Interleaved
Noise margin (Down/Up)
2.7 dB / 5.8 dB
Line attenuation (Down/Up)
37.5 dB / 19.7 dB
Output power (Down/Up)
20.1 dBm / 12.1 dBm
Loss of Framing (Local)
0
Loss of Signal (Local)
0
Loss of Power (Local)
0
FEC Errors (Down/Up)
0 / 840
CRC Errors (Down/Up)
30062 / 2147480000
HEC Errors (Down/Up)
nil / 94607
Error Seconds (Local)
15290
Test1 comprises of two tests
1. Best Effort Test: -provides background information.
Download Speed
5524 Kbps
0 Kbps
7150 Kbps
Max Achievable Speed
 Download speedachieved during the test was - 5524 Kbps
 For your connection, the acceptable range of speedsis 2000-7150 Kbps.
 Additional Information:
 Your DSL Connection Rate :7380 Kbps(DOWN-STREAM), 920 Kbps(UP-STREAM)
 IP Profile for your line is - 6000 Kbps
The throughput of Best Efforts (BE) classes achieved during the test is - 6.2:15.59:78.22 (SBE:NBEBE)
These figures represent the ratio while sententiously passing Sub BE, Normal BE and Priority BE marked traffic.
The results of this test will vary depending on the way your ISP has decided to use these traffic classes.
2. Upstream Test: -provides background information.
Upload Speed
751 Kbps
0 Kbps
920 Kbps
Max Achievable Speed
>Upload speed achieved during the test was - 751 Kbps
 Additional Information:
 Upstream Rate IP profile on your line is - 920 Kbps
Is this really the best I can expect on this line, given that no issues have been found with line quality and there are no extensions in the house / HH is plugged into master socket?