ADSL Upgrade still not effected

I called Telkom to upgrade my ADSL line from a 2MBPS to a 4 MBPS line a few weeks ago. I was told that it would be done in 24-48 hours. After a few days of waiting with no visible improvement to my line speed, I called Telkom. After waiting 45 minutes to speak to a consultant, I was told that the line is upgraded already. Yet when I do a speedtest, I get speeds as low as 0.54 MBPS. I have screenshots to prove this. The Telkom website still shows my line as a 2 Meg line. My latest bill is still showing that my line was not upgraded as I am still being billed for a 2 Meg line. As stated, the line is still terribly slow.<br> <br> Would someone, anyone from Telkom, please sort this issue out. I do not want to call the call centre again, as it will certainly be the standard 45 minute wait.