Update – Cool Ideas did some magic in dealing with Vumatel – yesterday afternoon two technicians from Vuma arrived and swapped out both the SFP and the CPE. For the first time I can report good international speeds:
http://beta.speedtest.net/result/6935389317
http://beta.speedtest.net/result/6935445809
Vumatel has some highly trained staff at their call centre. Not trained in networking or IT but trained in how to try to convince the customer that it is not their fault but the ISP’s fault. Thanks to everyone for their advice and recommendations and especially to PBCool – without him I would still have been butting my head against the Vuma Help Desk.. did I say Help Desk??