VOX Telcom FAIURE to deleiver

Impossible to get a response from them in respect of a problem. Requested a line upgrade from 100/10 to 100/100 on 1st December. Was away for December and on my return found an email dated 30th December advising that the new service had been provisioned. H One month to follow up!!!! However when I checked Vox had given me a 10/2 line, not the 100/100 that they have invoiced me for; which more often than not hovers around 1/1. I am now in day 4 of multiple calls to both VOX and Vumatel to resolve the issue. Left messages for 2 managers who have not returned calls. Still no resolution IF THIS IS YOUR BEST VOX THEN YOU HAVE FAILED MISERABLY. You all need a course in what customer service means.