Unacceptable technical support-Vox and Vumatel

I logged a fault to Vox on Tuesday 2 May. They couldn't resolve the issue and escalated it to Vumatel. They escalated the wrong address and therefore the wrong ip. On Wednesday 3 May I phoned vumatel and vox and informed them that they are using the wrong address. They escalated it again. On 4 May I phoned both Vox and Vumatel again, twice to get an update. Had to explain the address situation again. They are still stuck on the wrong address. At 2 I got a message to say a technician will call me. At 3 they escalated again and told me that my ip issue at the wrong address couldn't be resolved. A technician will phone me. At 4 they told me again that a technician will contact me, because my (wrong) ip issue could not be resolved. No technician has contacted me yet. I am working from home and lost 3 days. They don't seem to be in a hurry to help a paying client. If the tables were turned they wouldn't wait 3 days for their payment. It is so frustrating. Neither take responsibility to resolve the issue.