Weltevredenpark X9 Roodepoort ADSL problems

[sixpence]

I have (and pay for) a fastest ADSL Telkom line. But I never got faster than 3.6 Mbps download speed. The test conducted just now gave me 2.24 Mbps

Phone number (like 011 476 xxxx)
ADSL line speed (fastest I think this is 10Mbps)
Telkom 20GB softcapped
The time of day when you typically see these problems = any time

http://www.speedtest.net/result/2900187868.png

Optional, but it will be great if you can also give the following information:

Tracing route to telkom.co.za [196.43.22.222]
over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms 192.168.0.1
2 8 ms 8 ms 7 ms ti-224-48-01.telkomadsl.co.za [105.224.48.1]
3 10 ms 10 ms 9 ms ti-224-0-06.telkomadsl.co.za [105.224.0.6]
4 117 ms 211 ms 214 ms ti-224-0-13.telkomadsl.co.za [105.224.0.13]
5 12 ms 11 ms 11 ms 165.165.216.221
6 10 ms 10 ms 10 ms 196.43.39.162
7 12 ms 11 ms 12 ms rrba-ip-bssr-1-ge-2-48.telkom-ipnet.co.za [196.43.23.6]
8 13 ms 12 ms 13 ms nbsc-ip-bssr-1-atm-5-0-0-1.telkom-ipnet.co.za [196.43.23.30]
9 13 ms 14 ms 13 ms nbsc-ip-rcache-1-vif0.telkom-ipnet.co.za [196.43.22.222]

Trace complete.

ADSL Link
Downstream
Connection Speed 4096 kbps
Line Attenuation 42.5 db
Noise Margin 12.2 db

Upstream
Connection Speed 507 kbps
Line Attenuation 21.9 db
Noise Margin 18.6 db