Help me boost my speed :)

[#1]

Hello
As I am finally live with PlusNet (for a whole 4 hours), I went to check speeds:
BT Wholesale result: 7.5 down, 0.99 up. didn't let me run advanced
Router stats:
STATISTICS
Interface Transmit Receive
  Frames Bytes Collision Error Frames Bytes Collision Error
LAN:   62640 18601768 0 0 0 0 0 0
WAN:
367828 30547778 510 0 404825 250540079 1157 887
Wireless:   461519 256374393 - 1069 386312 39647601 - 25982
ADSL STATISTICS
Line State up
Modulation ITU G.992.5(ADSL2PLUS)
Annex Mode ANNEX_A
 
  Downstream Upstream
SNR Margin 6.1 dB 6.6 dB
Line Attenuation 24.2 dB 12.2 dB
Data Rate 15501 kbps 1167 kbps
ES 16473 0
SES 2677 0
UAS 89 89
FEC 0 0
CRC 33447 0

PlusNet Membercentre info:
Estimated line speed:
   15Mb (This may vary between 8.5Mb and 19Mb) - Checked on 2015-07-16 14:01:37
Current line speed:
   7.15 Mb

Overall a bit lower than I had with TalkTalk on the same router on the downstream data rate / estimated line speed.
Concerned about the Current Line Speed bit though, as that's actually 50% of the total?
No Noise on the phone line at all

[#2]

Hmm, for some reason the supplied product on our side had been set to an up to 8Mbps one. I've corrected that now, can you disconnect/reconnect and see what the speeds are like now?

[#3]

Seems better, thanks
Estimated line speed:
    15Mb (This may vary between 8.5Mb and 19Mb) - Checked on 2015-07-16 14:01:37
Current line speed:
    13.6 Mb
STATISTICS
Interface Transmit Receive
  Frames Bytes Collision Error Frames Bytes Collision Error
LAN:  3068 651336 0 0 0 0 0 0
WAN:
4926 1244895 440 0 5198 3462972 0 0
Wireless:  8052 4402038 - 21 10001 1507140 - 646
ADSL STATISTICS
Line State up
Modulation ITU G.992.5(ADSL2PLUS)
Annex Mode ANNEX_A
 
  Downstream Upstream
SNR Margin 6.3 dB 6.5 dB
Line Attenuation 24.2 dB 12.2 dB
Data Rate 15853 kbps 1159 kbps
ES 1 0
SES 0 0
UAS 89 89
FEC 0 0
CRC 1 0

[#4]

Could someone help me understand the error bits and whether that is good/bad?
Also, the attenuation bit, is that rather high or am I reading the wrong part?