Ah yeah thanks! So going from 10Mb line to 12Mb caused the 40ms jump in latency... I forced my router to sync on ADSL2 (ADSL_G.dmt.bis) and not ADSL2+ and now it is syncing at 11408Mbps but my latency dropped to 20ms to cape town...
Guess I will call them tomorrow to drop it back to 10Mbps. Thanks!
EDIT: I actually thought it was the vox account giving trouble because switching to axxess or afrihost (cant remember) dropped the latency from 60 to 20. I guess it may be a combination of these things.
EDIT2: Lol, back on ADSL2+ latency at 20ms. Never had this fluctuate so much. Had an absolutely solidly flawless experience for the last 3 months on Vox plus 10Mbps, now telkom is giving hassles